Ensure optimal engine performance with the OE 12637710 & 12581253 Rear Main Crankshaft Seal, designed for 3.6L engines in GMC, Buick, Cadillac, Chevy, Pontiac, and Saturn vehicles. This precision-engineered seal prevents oil leaks and maintains crankshaft integrity, meeting strict OEM standards.
▶ OE Part Numbers: 12637710 / 12581253 (Direct Replacement)
▶ Compatibility: GMC Acadia, Buick Enclave, Cadillac XT6, Chevy Traverse, Saturn Outlook
▶ Material: High-grade rubber with steel core for enhanced durability
▶ Temperature Range: -40°C to 200°C (-40°F to 392°F)
▶ Certification: ISO 9001, TS 16949 compliant
This seal is critical for:
• Heavy Truck Maintenance: Caterpillar 3516B engines in mining trucks
• Agricultural Machinery: John Deere combine harvesters
• Construction Equipment: Komatsu excavators
A 2018 Chevy Traverse with 85,000 miles showed persistent oil leakage near the bell housing, accompanied by low oil pressure warnings.
1. Used GTI AL-900 series leak detector to confirm crankshaft seal failure
2. Measured axial play (0.15mm beyond OEM spec)
3. Identified incompatible aftermarket seal installation
• Installed OE 12637710 seal with proper alignment tools
• Replaced worn crankshaft bearing (P/N 9637466980)
• Verified repair with 30-minute road test
✓ Global supplier of engineering machinery parts and automotive components
✓ Specialized in Caterpillar, John Deere, and GMC systems
✓ 12-month warranty on all seals and gaskets
✓ Fast global shipping via DHL/UPS
Explore our full range at: www.ar-excel.com | www.ampleresiliencesoft.com
由广数供应链（CGSC）团队提供运营方案 www.ar-webbuild.com
支持定制各种工程机械、重卡、农机、汽车零配件，联系客服来图来样即可开模！
| 序号 No. | 品牌/配件名称 Brand/Part Name | 零件号 Part Number | 备注 Remarks |
|---|---|---|---|
| 1 | Junjin DRIFTER ASSY | D9J2000000002 D9J2000000002 | 推进器总成 |
| 2 | Junjin CYLINDER ASSY | D9J2100000001 D9J2100000001 | 气缸总成 |
| 3 | Junjin DAMPER ASSY | D9J32000000000 D9J32000000000 | 减震器总成 |
| 4 | Junjin DRIVING ASSY | D9J23000000000 D9J23000000000 | 传动总成 |
| 5 | Junjin FLUSHING HEAD ASSY | D9J24000000001 D9J24000000001 | 冲洗头总成 |
| 6 | Junjin ACCUMULATOR ASSY | D9J35000000000 D9J35000000000 | 蓄能器总成 |
| 7 | Junjin SHANK T51 | 49D1200000712S 49D1200000712S | T51钻杆 |
| 8 | Junjin CYLINDER BODY | D9J21001000001 D9J21001000001 | 气缸体 |
| 9 | Junjin VALVE SLEEVE | D9J31002000001 D9J31002000001 | 阀套 |
| 10 | Junjin VALVE | D9J31003000001 D9J31003000001 | 阀门 |
| 11 | Junjin PISTON DJ00100 | D9J31004000003 D9J31004000003 | 活塞 |
| 12 | Junjin FRONT BUSH | D9J31005000003 D9J31005000003 | 前衬套 |
| 13 | Junjin FRONT RETAINER | D7J31006000000 D7J31006000000 | 前固定器 |
| 14 | Junjin REAR BUSH | D9J31007000005 D9J31007000005 | 后衬套 |
| 15 | Junjin REAR COVER | D9J21010000001 D9J21010000001 | 后盖 |
| 16 | Junjin ADJUSTER | D7J31011000000 D7J31011000000 | 调节器 |
| 17 | Junjin ADJ. NUT | D7J31012000000 D7J31012000000 | 调节螺母 |
| 18 | Junjin DAMPER HOUSING | D9J22001000001 D9J22001000001 | 减震器壳体 |
| 19 | Junjin GEAR HOUSING | D9J23001000001 D9J23001000001 | 齿轮箱 |
| 20 | Junjin BEARING BUSH-2 | D9J33002000001 D9J33002000001 | 轴承衬套2 |
Growshine International supplies the complete range of Junjin JET9 Drifter spare parts for JD1300E crawler drills. Every Junjin part number listed above is available for immediate export to Australia, North America, Europe and Africa. We stock genuine and OEM-quality aftermarket parts for construction machinery, heavy trucks, tractors and cars.
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Excavator Swing Motor – Caterpillar 336D – Swing Motor 336D
EN: Swing motor drives the upper structure rotation.
RU: Гидромотор поворота вращает верхнюю платформу.
Heavy Truck Air Dryer – Volvo FH16 – Air Dryer FH16
EN: Removes moisture from compressed air.
RU: Осушитель удаляет влагу из сжатого воздуха.
Tractor PTO Shaft – John Deere 8R 370 – PTO shaft 8R370
EN: Transfers power to implements.
RU: Вал отбора мощности передаёт мощность на орудия.
Car Turbocharger – Toyota Hilux 2.8GD – Turbo 2GD-FTV
EN: Increases engine power and efficiency.
RU: Турбина повышает мощность двигателя.
Excavator Hydraulic Pump – Komatsu PC200-8 – Pump 708-2L-00660
EN: Provides hydraulic flow to cylinders.
RU: Гидронасос подаёт поток к цилиндрам.
Truck Fuel Injector – Mercedes-Benz Actros 2663 – Injector A6510701387
EN: Delivers precise fuel spray.
RU: Форсунка точно подаёт топливо.
Tractor Alternator – Case IH Puma 240 – Alternator 2871A306
EN: Charges battery and powers electrics.
RU: Генератор заряжает аккумулятор.
Car ABS Sensor – Ford Ranger PX3 – Sensor BB5T-2B372-CB
EN: Monitors wheel speed for braking.
RU: Датчик ABS контролирует скорость колеса.
Excavator Track Roller – Hitachi ZX350-5G – Roller 9257121
EN: Supports and guides track chain.
RU: Опорный каток поддерживает гусеницу.
Truck Clutch Disc – Scania R500 – Clutch 1878074
EN: Transmits torque from engine to gearbox.
RU: Диск сцепления передаёт крутящий момент.
Fault: Hydraulic oil temperature rises above 90 °C after 2 hours of digging, causing slow movement.
Solution: 1) Check and clean the hydraulic oil cooler fins; 2) Replace the return filter and inspect the 708-2L-00660 hydraulic pump case drain for excessive internal leakage; 3) Verify fan motor speed sensor and replace if faulty. Tested on site in Perth mines, downtime reduced by 75 %.
How often should I replace the Junjin accumulator diaphragm D7J350050001? Every 2,000 impact hours or 12 months, whichever comes first.
What grease type for JD1300E crawler drill shank T51? Use NLGI-2 lithium complex grease with 3 % molybdenum disulfide.
Is Growshine International able to ship step seal K 37910051500480 by DHL to Chile? Yes, 3-5 days door-to-door with tracking.
Growshine International is a leading exporter of construction machinery parts, heavy truck parts, tractor parts and automotive parts. We stock over 50,000 SKU in our Shanghai and Ningbo warehouses. Whether you need Junjin JET9 parts, Caterpillar 336D swing motors, Volvo FH16 air dryers or John Deere PTO shafts, we ship worldwide at competitive prices. OEM, ODM and custom machining services are available.
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Contact CGSC:
Tel: +86 18565598186
Telegram: @Joyda_lina9
WhatsApp: +52 8181683423
Email: myematima@outlook.com
