Couplers And Components
Circle Track Couplers & Components at JJ Motorsports
Ensure secure and reliable connections between your clutch and transmission with high-quality couplers and components from JJ Motorsports. Designed for seamless power transfer under extreme track conditions, these parts are essential for Bert, Brinn, and Falcon racing setups in IMCA, USMTS, late models, modifieds, and street stocks, eliminating power loss and enhancing driveline durability.
Shop trusted brands like Winters for precision input shafts and crank couplers. Explore related categories such as Circle Track Clutches and Components for advanced clutch systems or Circle Track Manual Transmissions & Components for transmission upgrades.
Top Circle Track Couplers & Components
- Winters Input Shaft Collar Crank Hub Kit 18 Spline Steel 234-9049 – This Winters Performance Products kit is designed to facilitate the connection between Falcon transmissions and Chevrolet crankshafts. It includes a steel crankshaft coupler, an 18-spline steel transmission input shaft collar, and a standard 18/18 spline.
- Winters SBC External Balanced Flywheel 18-Spline Steel WIN63844-18 – The Winters SBC External Balanced Flywheel is engineered for Small Block Chevy V8 engines, featuring an 18-spline design and constructed from durable steel. This flywheel ensures precise external balancing, enhancing engine performance and reliability.
- Winters SBC Crank Coupler 10 Spline 1.375" Input Shaft 2-Piece Seal Steel Cadmium WIN62447 – The Winters SBC Crank Coupler is a high-performance component designed for Small Block Chevy engines. It features a 10-spline design with a 1.375-inch diameter input shaft, ensuring a secure and reliable connection. Constructed from steel and finished.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
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Winters Input Shaft Collar Crank Hub Kit 18 Spline Steel 234-9049
WINTERS
$260.97If you're running a Falcon transmission behind a Chevrolet engine, this input shaft collar and crank hub kit eliminates guesswork and potential misalignment issues that can compromise power transfer and durability. Winters Performance Products engineered...234-9049- SKU:
- 234-9049
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 LBS
$260.97 -
Winters SBC External Balanced Flywheel 18-Spline Steel WIN63844-18
WINTERS
$186.99If you're running a small block Chevy with external balancing requirements, you need a flywheel that matches your engine's specifications precisely—anything less compromises both performance and reliability. The Winters SBC External Balanced Flywheel...WIN63844-18- SKU:
- WIN63844-18
- Availability:
- Ships Same Business Day
- Weight:
- 3.28 LBS
- MFG Part #:
- 63844-18
$186.99 -
Winters SBC Crank Coupler 10 Spline 1.375" Input Shaft 2-Piece Seal Steel Cadmium WIN62447
WINTERS
$141.99A quality crankshaft coupler is critical for transmitting engine power reliably without slip or wear—especially in high-rpm racing environments where precision matters. The Winters SBC Crank Coupler delivers that reliability through robust steel...WIN62447- SKU:
- WIN62447
- Availability:
- Ships Same Business Day
- Weight:
- 1.79 LBS
- MFG Part #:
- 62447
$141.99 -
Winters Crank Coupler Standard 18 Spline HTD Pulley Steel for Chevy V8 WIN62446
WINTERS
$139.99The Winters Crank Coupler is essential for maintaining precise crankshaft-to-accessory synchronization in high-performance Chevy V8 applications. With its robust steel construction and secure 18-spline engagement, this coupler delivers consistent power...WIN62446- SKU:
- WIN62446
- Availability:
- Ships Same Business Day
- Weight:
- 1.93 LBS
- MFG Part #:
- 62446
$139.99 -
Winters Input Collar 18 Spline Steel Falcon Transmission WIN62407
WINTERS
$74.99If you're running a Falcon Transmission in a high-performance application, the input collar is a critical wear point that directly affects power transfer efficiency and shift quality. A worn or damaged collar compromises the connection between your input...WIN62407- SKU:
- WIN62407
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- MFG Part #:
- 62407
$74.99 -
Winters Crankshaft Coupler 18 Spline Steel Small Block Chevy WIN62350-18
WINTERS
$93.99A reliable crankshaft coupler is essential for transmitting power without slippage or deflection—especially when you're pushing your Small Block Chevy to its limits. The Winters 18-spline coupler delivers the precision fit and material durability...WIN62350-18- SKU:
- WIN62350-18
- Availability:
- Ships Same Business Day
- Weight:
- 1.14 LBS
- MFG Part #:
- 62350-18
$93.99 -
Winters Crankshaft Coupler Standard 18 Spline Steel Chevy V8 WIN62348-18
WINTERS
$81.99A crankshaft coupler is the critical link between your engine's rotating assembly and transmission—any play or failure here compromises power delivery and risks catastrophic damage. The Winters Standard 18-Spline Coupler delivers the precision fit and...WIN62348-18- SKU:
- WIN62348-18
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- MFG Part #:
- 62348-18
$81.99
