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Spec Clutch SB105 Stage 5 Full-Metallic Clutch Kit

(1987-1991 BMW 325i; 1987-1991 BMW 325is; 1984-1986 BMW 325e; 1982-1986 BMW 528e; 1988-1991 BMW 325iX; 1986 BMW 325es)

Manufacturer

Picture for manufacturer Spec Clutch

Part Number

SB105
8 reviews
Sale Price

$507.36

Estimated ship date Tuesday, November 24

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The SPEC SB105 Stage 5 Clutch Kit is SPEC's top-tier single-disc race clutch, engineered for extremely modified drag race and pulling applications where maximum torque capacity and aggressive engagement are non-negotiable. This is a purpose-built competition clutch—not designed for daily street driving—and delivers the highest friction coefficient available in the SPEC single-disc lineup.

Key Features:

  • Full-metallic friction disc with the highest possible friction coefficient for maximum torque transfer
  • Solid 12-rivet hub assembly heat-treated for strength and long-term durability under extreme load
  • High-clamp pressure plate for aggressive clamping force (adjustability available on select applications)
  • Includes bearing and tool kit for complete installation
  • SFI Approved — meets SFI safety certification standards

Intended Use: Drag Racing, Pulling

The Stage 5 is SPEC's most aggressive single-disc offering and is recommended for race-only applications. Stages 1–3+ are suited for street/strip use; Stages 4 and 5 are race-only. Due to the rigid iron disc assembly and high clamp load, engagement is harsh and not suitable for street driving. For best results, this kit should be configured with input from a SPEC technical specialist based on your specific build and intended use.

Products specifications

Fits

1987-1991 BMW 325i; 1987-1991 BMW 325is; 1984-1986 BMW 325e; 1982-1986 BMW 528e; 1988-1991 BMW 325iX; 1986 BMW 325es

Torque Capacity

600 ft/lbs

I have dealt with them twice so far and they have been great both times. Price can't be beat and you can get someone on the phone nearly every time you call. Shipping is reasonable and fairly quick. I will definitely shop here again.

Very competitive prices and fast FREE shipping! Will do business with Autoplicity again!

Prices were very fair, had to check back a few times to the listing to determine if item was sold in pairs and/or individually. Overall however the product looks good.

I bought gauges from here and it was the best price around. They shipped it quickly and it should be here soon. Ill buy from here again.

great

BEST PRICE AROUND, HANDS DOWN. Shipping was fast and communication was impeccable. THANKS FOR THE PROFESSIONALISM.

Very good website. Easy to use. found the parts i needed and the order process was very easy since i could just login using my amazon account. Very convenient. Received my parts in a week.

I ordered this product and Wednesday in the morning and it was on my door step Thursday morning with regular shipping. The ordering process was super easy and the price was $35 cheaper than any other online retailer. The Rack is awesome, easy to assemble took me about 20 minutes by myself, put on my jeep hooked up the bikes and off I went, fantastic design, I highly recommend the Rola NV2 bike rack and highly recommend Autoplicity

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