{"id":748,"date":"2026-09-17T07:46:18","date_gmt":"2026-09-17T07:46:18","guid":{"rendered":"https:\/\/drivelines.net\/product\/series-4-quick-release-pto-yoke-1-3-8-6-spline-27x74-6-mm-cross\/"},"modified":"2026-09-17T07:46:18","modified_gmt":"2026-09-17T07:46:18","slug":"series-4-quick-release-pto-yoke-1-3-8-6-spline-27x74-6-mm-cross","status":"publish","type":"product","link":"https:\/\/drivelines.net\/ja\/product\/series-4-quick-release-pto-yoke-1-3-8-6-spline-27x74-6-mm-cross\/","title":{"rendered":"Series 4 Quick Release PTO Yoke \u2014 1-3\/8″ 6 Spline (27\u00d774.6 mm Cross)"},"content":{"rendered":"
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<\/div>\n

Series 4<\/p><\/div>\n

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<\/div>\n

1-3\/8″ 6-Spline (540 rpm)<\/p><\/div>\n

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<\/div>\n

27\u00d774.6 mm Cross Kit<\/p><\/div>\n

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<\/div>\n

Quick Release Push-Pin<\/p><\/div>\n

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<\/div>\n

20CrMnTi Forged Steel<\/p><\/div>\n

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<\/div>\n

CE\u8a8d\u8a3c\u53d6\u5f97\u6e08\u307f<\/p><\/div>\n

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<\/div>\n

\u6700\u5c0f\u6ce8\u6587\u6570\u91cf1\u500b \u2014 LGPD\u5bfe\u5fdc<\/p><\/div>\n<\/div>\n

Series 4 Z6 Quick Release PTO Yoke — Compatible Shaft Series<\/h2>\n
\n\n\n\n\n\n\n\n
Compatible Shaft<\/th>\nSeries Type<\/th>\n\u30af\u30ed\u30b9\u30ad\u30c3\u30c8<\/th>\nHP\u7bc4\u56f2<\/th>\n<\/tr>\n<\/thead>\n
T4<\/td>\nT Series (Triangular)<\/td>\n27\u00d774.6 mm<\/td>\n28\u201345 hp<\/td>\n<\/tr>\n
L4<\/td>\nL Series (Lemon)<\/td>\n27\u00d774.6 mm<\/td>\n28\u201345 hp<\/td>\n<\/tr>\n
G4<\/td>\nG Series (Wide Angle CV)<\/td>\n27\u00d774.6 mm<\/td>\n28\u201345 hp<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\n
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Series 4<\/div>\n
Shaft Series<\/div>\n<\/div>\n
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27\u00d774.6<\/div>\n
Cross Kit mm<\/div>\n<\/div>\n
\n
6-Spline<\/div>\n
1-3\/8″<\/div>\n<\/div>\n
\n
27 mm<\/div>\n
Cross Pin Ø<\/div>\n<\/div>\n<\/div>\n
Series: 4<\/span>Spline: 1-3\/8″ Z6 (6-spline)<\/span>Cross: 27\u00d774.6 mm<\/span>Pin Ø: 27 mm<\/span>Lock: Push-Pin Quick Release<\/span>Material: 20CrMnTi forged steel<\/span>Finish: Phosphate coat<\/span>Bore: Induction hardened<\/span>Compatible: T4 \/ L4 \/ G4<\/span><\/div>\n
\"Series<\/div>\n

\u6982\u8981<\/h2>\n
\n
⚙ Series 4 — Cross kit 27\u00d774.6 mm, Pin Ø 27 mm<\/div>\n
🔗 Compatible: T4 \/ L4 \/ G4 drive shafts<\/div>\n
▲ 1-3\/8″ Z6 bore (6-spline) — 1-3\/8″ 6-Spline (540 rpm)<\/div>\n
► Push-pin quick release — tool-free connect and disconnect<\/div>\n
🔧 20CrMnTi forged steel — induction-hardened bearing seat bores<\/div>\n
🌎 CE certified — LGPD compliant, ships to Brazil<\/div>\n<\/div>\n

\u88fd\u54c1\u8aac\u660e<\/h2>\n

Series 4 Quick Release Splined Yoke is the most widely used PTO yoke specification in the global agricultural market. It is the tractor-end connection standard for rotary cutters, brush hogs, finish mowers, and general-purpose implements on 28\u201345 hp tractors \u2014 the dominant tractor class in commercial farming worldwide. The 1-3\/8 inch 6-spline bore fits every standard Z6 540 rpm PTO stub, and the 27\u00d774.6 mm cross-kit seat is compatible with all T4, L4, and G4 series shafts.<\/p>\n

The Series 4 push-pin quick release design uses a spring-loaded pin with a retention collar. Pressing the collar allows the pin to retract; releasing it allows the pin to spring back into the engagement groove on the PTO stub. The engagement is audible and tactile \u2014 a positive click confirms correct seating. The design is deliberately simple: no keys, no tools, and no secondary locking mechanism that might be overlooked in field conditions.<\/p>\n

Series 4 Z6 is Ever-Power Drive Line’s highest-volume yoke stock item. It is shipped to Brazil, Argentina, Paraguay, and Chile regularly as both individual replacement units and in bulk packing for distributor stock. For distributor and dealer pricing, contact Ever-Power Drive Line<\/a>.<\/p>\n

Quick Release Mechanism — How It Works<\/h2>\n
\"Quick<\/p>\n

The push-pin spring-loads into the PTO stub engagement groove. Press the collar to release.<\/p>\n<\/div>\n

\n
\n
1<\/div>\n

Push Collar Forward<\/p>\n

Press the spring-loaded collar toward the yoke body. This retracts the push-pin from its engagement position, freeing the bore to slide onto the PTO stub.<\/p>\n<\/div>\n

\n
2<\/div>\n

Slide Yoke Onto Stub<\/p>\n

With collar held forward, push the splined bore fully onto the PTO stub until the yoke is fully seated. The splines must be fully engaged before releasing the collar.<\/p>\n<\/div>\n

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3<\/div>\n

Release \u2014 Click Confirms Lock<\/p>\n

Release the collar. The spring drives the push-pin into the stub engagement groove. An audible click and positive resistance to withdrawal confirms correct locking.<\/p>\n<\/div>\n<\/div>\n

Dimensional Drawing — A \/ B \/ C \/ D Reference<\/h2>\n
\"Series<\/p>\n

A = Overall length  |  B = Cross pin diameter  |  C = Yoke width  |  D = Bore diameter. Refer to the compatibility table above for exact mm values.<\/p>\n<\/div>\n

\"Series<\/p>\n

End-face view of the 1-3\/8″ Z6 spline bore (6-spline). Count the splines to confirm the correct specification before ordering.<\/p>\n<\/div>\n

Cross-Reference Part Numbers<\/h2>\n
\n\n\n\n\n\n\n\n\n
Brand \/ Standard<\/th>\nPart Number \/ Reference<\/th>\nSeries Designation<\/th>\n<\/tr>\n<\/thead>\n
Weasler (North American)<\/td>\n102-0406<\/td>\nNA Series 4<\/td>\n<\/tr>\n
Sparex \/ Eurocardan (European)<\/td>\nS.128157<\/td>\nItalian Series \/ Z6<\/td>\n<\/tr>\n
Bondioli & Pavesi (Italian)<\/td>\n1.05.04<\/td>\nItalian catalog ref<\/td>\n<\/tr>\n
Ever-Power Drive Line (This product)<\/td>\nEPG-YK-QR-4-Z6<\/td>\nEPG Series 4 Z6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u30b9\u30d7\u30e9\u30a4\u30f3\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u53c2\u7167<\/h2>\n
\"PTO<\/p>\n

Left: Z6 (6-spline, 540 rpm) — Centre: Z21 (21-spline, European) — Right: Z20 (20-spline, 1,000 rpm)<\/p>\n<\/div>\n

\u4e3b\u306a\u6a5f\u80fd<\/h2>\n
\n
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<\/div>\n
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Push-Pin Quick Release<\/p>\n

Spring-loaded push-pin mechanism allows tool-free connection and disconnection from the PTO stub. Press the collar to retract the pin; release to engage. An audible click confirms positive locking. One-handed operation in field conditions.<\/p>\n<\/div>\n<\/div>\n

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<\/div>\n
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1-3\/8″ Z6 Spline Bore<\/p>\n

Standard 540 rpm agricultural interface \u2014 fits all Z6 PTO stubs worldwide. The bore is induction-hardened for resistance to spline wear during frequent engagement and release cycles.<\/p>\n<\/div>\n<\/div>\n

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<\/div>\n
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27\u00d774.6 mm Cross-Kit Seat<\/p>\n

Precision-machined cross-kit bearing cup bores hardened to accept 27 mm pin diameter needle-roller cross-kit cups. Compatible with Series 4 cross kits used across T4 \/ L4 \/ G4 drive shaft assemblies.<\/p>\n<\/div>\n<\/div>\n

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20CrMnTi Forged Steel Body<\/p>\n

Drop-forged chromium-manganese-titanium alloy steel yoke body, normalised and induction-hardened at the bearing seat bores. Phosphate surface coating provides corrosion resistance in outdoor agricultural conditions. Designed for long-term field service life.<\/p>\n<\/div>\n<\/div>\n

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Retention Spring and Collar<\/p>\n

Heavy-duty retention spring loaded in the push-pin bore maintains positive engagement under PTO operating vibration. The collar provides a reliable surface for one-handed release in field gloves. Spring tension is calibrated for the series torque class.<\/p>\n<\/div>\n<\/div>\n

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<\/div>\n
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CE Certified \u2014 LGPD Ready<\/p>\n

CE Declaration of Conformity and ISO 9001:2015 documentation included with every shipment. LGPD data handling compliance for Brazil import submissions. SGS third-party inspection available for contract orders.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

\u4ee3\u8868\u7684\u306a\u7528\u9014<\/h2>\n
\"Series<\/p>\n

Series 4 Z6 yoke — tractor-end connection for 28\u201345 hp implements<\/p>\n<\/div>\n

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Rotary Cutters and Brush Hogs<\/p>\n

Series 4 Z6 is the global standard yoke for rotary cutters and brush hogs on 28\u201345 hp tractors. It is the highest-volume PTO yoke specification worldwide, fitted as OEM standard on the majority of rotary cutter models in this tractor class.<\/p>\n<\/div>\n

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Finish Mowers<\/p>\n

Finish mowers on 30\u201345 hp tractors. The Series 4 Z6 Z6 push-pin provides positive engagement through continuous mowing operation and allows rapid disconnection for blade changing and deck maintenance.<\/p>\n<\/div>\n

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General Purpose Farm Use<\/p>\n

The most versatile PTO yoke specification \u2014 fits the widest range of 28\u201345 hp tractor implements including spreaders, seeders, tillers, and light balers. If a single yoke needs to be stocked for a mixed implement fleet, Series 4 Z6 is the correct choice.<\/p>\n<\/div>\n<\/div>\n

Installation Procedure<\/h2>\n
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1<\/div>\n

Verify Series and Spline<\/p>\n

Confirm your PTO shaft is Series 4 (27\u00d774.6 mm cross kit) and your tractor PTO stub is Z6 (1-3\/8″ 6-spline). Count the splines if in doubt.<\/p>\n<\/div>\n

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2<\/div>\n

Clean the Stub<\/p>\n

Remove any rust, debris, or old lubricant from the tractor PTO stub and the yoke spline bore before installation. A clean, dry spline surface ensures maximum contact area and positive push-pin engagement.<\/p>\n<\/div>\n

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3<\/div>\n

Press Collar and Engage<\/p>\n

Press the collar toward the yoke body to retract the push-pin. Align the yoke spline bore with the stub splines and push firmly until the yoke is fully seated on the stub.<\/p>\n<\/div>\n

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4<\/div>\n

Release and Verify Click<\/p>\n

Release the collar. You should hear and feel the push-pin snap into the stub engagement groove. Tug the yoke firmly \u2014 it must not slide back without pressing the collar.<\/p>\n<\/div>\n

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5<\/div>\n

Anchor Safety Chain<\/p>\n

After the shaft is fully connected (both ends), anchor the safety shield chains to fixed, non-rotating points on the tractor and implement. Never operate without safety chains secured.<\/p>\n<\/div>\n<\/div>\n

\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n
\n
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How do I identify a Series 4 yoke?<\/div>\n
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    \n
  • —<\/span>Measure the cross-kit seat diameter at the bearing cup bore: Series 4 = 27 mm<\/li>\n
  • —<\/span>The cross-kit journal length is 74.6 mm \u2014 longer than Series 3 (70 mm) and shorter than Series 5 (80 mm)<\/li>\n
  • —<\/span>The Weasler part number 102-0406 or Italian catalog code 1.05.04 also confirm Series 4<\/li>\n<\/ul>\n<\/div>\n<\/div>\n
    \n
    What is the difference between Series 4 Z6 and Series 5 Z6?<\/div>\n
    \n
      \n
    • —<\/span>Series 4: 27\u00d774.6 mm cross-kit seat, 27 mm pin diameter<\/li>\n
    • —<\/span>Series 5: 30.2\u00d780 mm cross-kit seat, 30.2 mm pin diameter \u2014 larger, heavier, higher torque<\/li>\n
    • —<\/span>The spline bore is the same (1-3\/8″ 6-spline Z6) on both \u2014 only the cross-kit seat differs<\/li>\n
    • —<\/span>If the existing yoke ears are wider and heavier than a known Series 4, it is likely Series 5<\/li>\n<\/ul>\n<\/div>\n<\/div>\n
      \n
      Can I use a Series 4 Z6 yoke on a Z20 (1,000 rpm) PTO stub?<\/div>\n
      \n
        \n
      • —<\/span>No \u2014 Series 4 Z6 has a 1-3\/8″ 6-spline bore, which will not engage a 1-3\/4″ 20-spline Z20 stub<\/li>\n
      • —<\/span>For 1,000 rpm applications, you need Series 4 Z20 (20-spline bore) \u2014 a separate product<\/li>\n
      • —<\/span>Always confirm the tractor PTO stub spline count before ordering<\/li>\n<\/ul>\n<\/div>\n<\/div>\n
        \n
        Push pin vs clamp bolt yoke \u2014 which should I choose?<\/div>\n
        \n
          \n
        • —<\/span>Quick release (push pin): use when the yoke is connected and disconnected frequently \u2014 daily implement changes<\/li>\n
        • —<\/span>Clamp bolt: use when the yoke is installed once and removed only for scheduled maintenance<\/li>\n
        • —<\/span>Push pin is the standard for tractor-end yokes; clamp bolt is more common on implement-end connections<\/li>\n
        • —<\/span>Both provide secure retention \u2014 push pin offers faster operation; clamp bolt provides higher clamping force<\/li>\n<\/ul>\n<\/div>\n<\/div>\n
          \n
          What cross kit is compatible with the Series 4 Z6 yoke?<\/div>\n
          \n
            \n
          • —<\/span>Series 4 cross kit: 27\u00d774.6 mm, code 4.01<\/li>\n
          • —<\/span>This cross kit is shared with T4, L4, and G4 drive shaft assemblies<\/li>\n
          • —<\/span>Individual cross kits are available from the Cross Kit product page<\/li>\n
          • —<\/span>Always order cross kits by series code (4.01) to ensure correct journal length<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n

            \u304a\u5ba2\u69d8\u306e\u58f0<\/h2>\n
            \n
            \n
            \n
            \n

            Marco A.<\/p>\n

            Paran\u00e1, Brazil \u2014 Implement Dealer<\/p>\n<\/div>\n

            ★★★★★<\/span><\/div>\n

              \n
            • Series 4 Z6 yoke confirmed correct fit on T4 shaft assembly<\/li>\n
            • Push-pin engagement positive and audible \u2014 no retention issue across full season<\/li>\n
            • CE documentation included \u2014 straightforward import compliance for our fleet<\/li>\n<\/ul>\n<\/div>\n
              \n
              \n
              \n

              Helena V.<\/p>\n

              Montevideo, Uruguay \u2014 Parts Distributor<\/p>\n<\/div>\n

              ★★★★★<\/span><\/div>\n

                \n
              • Series 4 Z6 stocked alongside T Series shafts \u2014 sells consistently as a replacement part<\/li>\n
              • Dimensional consistency across batches \u2014 no fit issues on any customer return<\/li>\n
              • Lead time within 9 days for stock orders \u2014 sufficient for our seasonal purchasing<\/li>\n<\/ul>\n<\/div>\n<\/div>\n

                \u914d\u9001\u304a\u3088\u3073\u6ce8\u6587\u60c5\u5831<\/h2>\n
                \n
                \n

                \u6700\u5c0f\u6ce8\u6587\u6570\u91cf<\/p>\n

                1 pc from stock
                50 pcs custom \/ OEM<\/p>\n<\/div>\n

                \n

                \u30ea\u30fc\u30c9\u30bf\u30a4\u30e0<\/p>\n

                7\uff5e10\u65e5\uff08\u5728\u5eab\u3042\u308a\uff09
                20–30 days (OEM)<\/p>\n<\/div>\n

                \n

                \u914d\u9001<\/p>\n

                Sea \/ Air to Brazil
                South America<\/p>\n<\/div>\n

                \n

                \u53d6\u5f15\u6761\u4ef6<\/p>\n

                FOB Ningbo
                CIF\u30b5\u30f3\u30c8\u30b9\u5229\u7528\u53ef\u80fd<\/p>\n<\/div>\n<\/div>\n

                \u8cc7\u683c\u8a8d\u5b9a<\/h2>\n
                \n
                \"CE\"CE\u8a8d\u8a3c\u53d6\u5f97\u6e08\u307f<\/span><\/div>\n
                \"ISOISO 9001:2015<\/span><\/div>\n
                \"TS\/16949\"TS\/16949<\/span><\/div>\n
                \"SGS\"SGS\u691c\u67fb<\/span><\/div>\n
                \n
                <\/div>\n

                LGPD\u6e96\u62e0<\/span><\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

                Series 4 Quick Release PTO Yoke from Ever-Power Drive Line. 1-3\/8 inch 6-spline (Z6, 540 rpm) — push-pin quick release, tool-free connect and disconnect. Cross-kit seat: 27\u00d774.6 mm (4.01), Pin Ø 27 mm. Compatible with: T4, L4, G4. 20CrMnTi forged steel, induction-hardened bore, phosphate finish. CE certified, ISO 9001. MOQ 1 pc. Ships to Brazil.<\/p>","protected":false},"featured_media":719,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[1144],"product_tag":[1160,1150,993,1148,1145,1159,1161,1151,1147],"class_list":["post-748","product","type-product","status-publish","has-post-thumbnail","product_cat-quick-release-splined-yoke","product_tag-27x74-6-mm-cross-kit-yoke","product_tag-agricultural-pto-yoke","product_tag-ever-power-drive-line","product_tag-push-pin-pto-yoke","product_tag-quick-release-pto-yoke","product_tag-series-4-pto-yoke","product_tag-t4-l4-g4-compatible-yoke","product_tag-tractor-pto-yoke","product_tag-z6-pto-yoke","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/drivelines.net\/ja\/wp-json\/wp\/v2\/product\/748","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/drivelines.net\/ja\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/drivelines.net\/ja\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/drivelines.net\/ja\/wp-json\/wp\/v2\/comments?post=748"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/drivelines.net\/ja\/wp-json\/wp\/v2\/media\/719"}],"wp:attachment":[{"href":"https:\/\/drivelines.net\/ja\/wp-json\/wp\/v2\/media?parent=748"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/drivelines.net\/ja\/wp-json\/wp\/v2\/product_brand?post=748"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/drivelines.net\/ja\/wp-json\/wp\/v2\/product_cat?post=748"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/drivelines.net\/ja\/wp-json\/wp\/v2\/product_tag?post=748"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}