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FREE SHIPPING on US orders over $75 (oversize excepted) • Quality used E36 & E46 parts • Every part inspected & graded
Genuine BMW
BMW Part Number11 21 1 721 100

Hex Bolt

Out of stock

One email when it is listed. Nothing else.

Free US shipping on orders over $75.00 · oversize quoted. Oversize items ship at a flat $49.99 each — free shipping does not cover them.

WARNING: Cancer and Reproductive Harm from exposure to lead — www.P65Warnings.ca.gov P65Warnings.ca.gov

Inspected and graded before it's listed · 30-day returns

Make sure this fits your car

Fits E36 316g–318ti & more · E46 316i, 316i 1.6, 316i 1.9, 318i 1991–2001 — M42, M43, M44 engines

Select your vehicle to check fitment
See all 121 fitting cars
CompactM43ManualCH11
CoupeM43AllBL51
Hex Bolt – BMW diagram

Callout 04 on BMW’s drawing “Belt Drive-Vibration Damper”. Open the drawing →

Also shown on Belt Drive-Vibration Damper, Belt Drive-Vibration Damper, Belt Drive-Vibration Damper and 1 more.

This is a genuine BMW hex Bolt, part number 11 21 1 721 100. You will find it under Engine (Crankshaft with bearing).

Fits E36 318i and 318ti (1992–1999) with the M42, M43 or M44 engines. Also fits E46 316i, 316i 1.6, 316i 1.9 and 318i (1997–2001), sedan, coupe and touring, with the M43 engine.

BMW draws it on 10 drawings, among them two Belt Drive-Vibration Damper drawings. It weighs about 260 g (0.6 lb).

Out of stock. Request it and we will notify you when it is in stock.

Details

EnginesM42, M43, M44
Weight0.26 kg

Used parts are inspected and graded: Good (minimal wear), Fair (normal wear) or Acceptable (visible wear). All fully working. Returns: 30 days if a part arrives damaged or not as described.

The other parts on BMW’s drawing “Belt Drive-Vibration Damper”. Open the drawing →

#PartIn stockAction
01Vibration damperOut of stockRequest
02Pulley2 numbers at this calloutOut of stockRequest
03Hex Bolt with washerOut of stockRequest
04Hex Bolt · this partOut of stock
05WasherOut of stockRequest
06HubOut of stockRequest
07PinOut of stockRequest
08SprocketOut of stockRequest
09Woodruff keyOut of stockRequest
10Fan beltOut of stockRequest
CompactM43ManualCH11
CoupeM43AllBL51

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InEngineCrankshaft with bearing