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Get all 2 parts in one click with our pre-assembled kit.
Details
| Specification | Value |
|---|---|
| Brand | CONTINENTAL CTAM |
| MPN | ct520k1 |
| Width [mm] | 25 mm |
| Weight [kg] | 0,674 kg |
| Packaging length [cm] | 26.5 cm |
| Packaging width [cm] | 16.5 cm |
| Packaging height [cm] | 9.5 cm |
OE numbers (5)
Search by this OE number to find compatible parts
- BMW—11311711081
- BMW—11311713361
- BMW—1711081
- BMW—1711082
- BMW—1713361
Where this part fits
Original-fit position for OE 11311711081. The red ring marks where this part installs on the vehicle.
What's in the kit
This kit ships with 2 factory-matched components. Each part below is supplied as part of the kit; click any linked MPN to view that component on its own.
| # | Part number | Component | Qty |
|---|---|---|---|
| 1 | CT520 | Timing Belt
| 1 |
| 2 | V55000 | Tensioner Pulley, timing belt
| 1 |
About this product
CONTINENTAL CTAM timing belt (CT520K1) synchronises the crankshaft and camshaft with tooth-pitch accuracy measured in hundredths of a millimetre — preventing valve-to-piston contact that would destroy the engine if the belt skips or snaps. Belt construction data — Number of Teeth: 127, Width [mm]: 25 mm, Weight [kg]: 0, 674 kg, Packaging length [cm]: 26, Rubber cm — reflects the tensile load the belt must sustain at peak RPM, with an HNBR or EPDM compound chosen for the specific temperature range of your engine bay. Tooth profile, pitch, and width are specified for the camshaft drive on BMW engines; always replace the tensioner and idler pulleys simultaneously to prevent premature failure. OE cross-references: 11027, 11028, 11311711081, 11311713361 and 36 more. CONTINENTAL CTAM timing belts are tested to OEM replacement intervals and carry a service-life certificate verifying the compound meets the manufacturer's durability specification. Timing belt replacement intervals vary by manufacturer — typically every 40,000–100,000 miles or 4–6 years, whichever comes first — and must be followed strictly because a snapped belt on an interference engine causes catastrophic valve and piston damage. There are rarely visible warning signs before a timing belt fails; some belts may exhibit surface cracking, fraying, or a glazed appearance, but many break without warning — this is why interval-based replacement is essential. Timing belt replacement is an advanced DIY job requiring careful crankshaft and camshaft alignment, a torque wrench, and engine-specific locking tools — budget 3–5 hours and consult a workshop manual for your exact engine code. When replacing the timing belt, always fit a new tensioner, idler pulley, and water pump (if belt-driven) at the same time — these components have the same service life, and a failed tensioner will destroy the new belt. Investing in a quality timing belt kit now prevents the most expensive engine failure a vehicle can suffer — a belt-related engine rebuild typically costs 10–20 times the price of the belt kit itself. Every part is dispatched with tracked delivery and a 14-day money-back guarantee with hassle-free returns.
Suitable cars
Equivalent products (35)
Show all 35 OE numbers
Timing Belt Kit CONTINENTAL CTAM CT520K1 — compatible car models
| Car models | BMW: 3 Convertible (E30), 3 (E21), 3 (E30), 3 Touring (E30), 5 (E28), 5 (E34), Z1 Roadster |
|---|---|
| Engines | 320 i; 320/6; 520 i; 2.5 |
| Year of manufacture | 1975-1995 |
| Manufacturer article number (MPN) | CT520K1 |
| OE part numbers | 11311711081, 11311713361, 1711081, 1711082, 1713361 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
CONTINENTAL CTAM ct520k1 . Number of Teeth: 127. Packaging height [cm]: 9,5 cm. Packaging length [cm]: 26,5 cm. Packaging width [cm]: 16,5 cm. Weight [kg]: 0,674 kg. Width [mm]: 25 mm
- 1x Timing belt
- 1x Tensioner pulley
- Idler pulleys (where applicable)
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Tracked standard shipping.
- Standard delivery: 5–9 business days
- Order before 5pm — ships the next working day
- Free returns within 14 days
- All parts backed by manufacturer warranty
Warranty: 12-month manufacturer warranty on all parts. 14-day money-back guarantee if the part doesn't fit your vehicle.
Frequently Asked Questions
Is this Timing Belt Kit compatible with my car?
This Timing Belt Kit fits BMW vehicles. Use the vehicle selector at the top of the page to check exact compatibility — enter your car's make, model, and engine for a confirmed fitment match. All fitment data is verified through TecDoc.
What specifications does this CONTINENTAL CTAM Timing Belt Kit have?
This CONTINENTAL CTAM Timing Belt Kit has the following specifications: Number of Teeth: 127; Width [mm]: 25 mm; Weight [kg]: 0,674 kg; Packaging length [cm]: 26,5 cm; Packaging width [cm]: 16,5 cm; Packaging height [cm]: 9,5 cm. Check the full specifications table above for complete details.
What OE part numbers does this Timing Belt Kit replace?
This Timing Belt Kit replaces OE part numbers: 11311711081, 11311713361, 1711081, 1711082, 1713361. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Timing Belt Kit cost?
This CONTINENTAL CTAM Timing Belt Kit is available for £48.99. Timing Belt Kit prices vary depending on brand, specifications, and vehicle compatibility. CONTINENTAL CTAM parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Timing Belt Kit?
Replace the full kit — belt, tensioner, and idler pulleys — at the manufacturer's scheduled interval (typically 60,000-100,000 miles). Never replace the belt alone without inspecting the tensioner and water pump, as worn pulleys can cause premature belt failure.
What tools do I need to replace a Timing Belt Kit?
Tools needed: engine timing lock kit (vehicle-specific), camshaft sprocket holder, socket set, torque wrench, tensioner tool. Difficulty: Professional recommended. Safety warning: Always replace the tensioner and idler pulley at the same time as the belt -- the kit includes these components. Incorrect installation can result in engine destruction.
Can I use this part as a replacement for OE 11311711081?
Yes, this CONTINENTAL CTAM Timing Belt Kit is a direct replacement for OE part number 11311711081. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Is the CONTINENTAL CTAM CT520K1 the same as the CONTINENTAL CTAM CT1001K1?
No, while both are Timing Belt Kit parts, they are different products. The CONTINENTAL CTAM CT520K1 has Number of Teeth: 127, Width [mm]: 25 mm, Weight [kg]: 0,674 kg. The CONTINENTAL CTAM CT1001K1 may differ in dimensions, fitting position, or material composition. Always verify compatibility with your specific vehicle using our vehicle selector, or contact our customer service team for assistance.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
