DNJ
DNJ 2003 Audi A8 Quattro 4.2L Timing Belt
DNJ 2003 Audi A8 Quattro 4.2L Timing Belt
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- Tracking emailed when it ships
- Free fitment check before you order
Listed for: Audi A8 QuattroAWDFitment notes & questions
2003 Audi A8 Quattro 4.2L Timing Belt from DNJ, listed for 2003 Audi A8 Quattro with the 4.2L engine. The timing belt keeps the crankshaft and camshafts turning in step, so the valves open at exactly the right moment.
Quick facts
- Brand: DNJ
- Part type: Timing belt
- Listed for: 2003 Audi A8 Quattro
- Engine: 4.2L
- Engine code: AHA 30V DOHC
- Part number: TB804_41
Listed fitment
- [1998-2006] AUDI, VOLKS / V6, V8 / 2.7L, 2.8L, 4.2L DOHC 30V, 40V [(AHA, ATQ, AKB, ART, AUX, AWN, AYS, APB, BEL, AXQ, BGH, BBD, BGK, BCY)]
Good to know
- Notes: Premium
- Warranty terms: 12 month or 12,000 mile warranty whichever comes first. Warranty must be requested by the original purchaser and is limited to the replacement of the alleged defective part(s) only.
Tip: Replace the tensioner and idler pulleys with the belt, and double-check the timing marks before the first start.

DNJ timing belt for the Audi A8 Quattro: what to know
Timing belts wear with age and miles. On many engines a broken belt can bend valves, so it is replaced on a schedule.
Fitment notes
- Listed for: Audi A8 Quattro.
- Drivetrain: AWD. AWD and 4WD versions often use different parts from 2WD versions of the same car.
- Engine: match the engine size and code to your vehicle; the same model often came with several engines.
- Specs, lead time and warranty come from DNJ and can change. The details above this guide are the latest we have.
Not sure it fits? Tell us exactly what you drive and we'll confirm fitment first. It's free and saves a return.
Ask about fitmentWhat else to plan for
- Water pump. On many engines the belt drives the water pump, so replace it while you are in there.
- Cam and crank seals. Leaking front seals can ruin a new belt.
- Tensioner and idlers. A worn tensioner is a common reason belts fail early.
More for your car: Audi Timing Belts · Audi Parts · All Timing Belts · Engine