- Shop with confidence: competitive prices, exclusive deals, and delivery perks.
- Need it quickly? We dispatch fast-moving parts daily. Check delivery options.
- Swap or return items within the standard return period with a simple process.
- Questions about fitment or orders? Our support team is ready to help.
Similar products
Customers also bought
.JPG&w=3840&q=75)
Details
| Specification | Value |
|---|---|
| Brand | DAYCO |
| MPN | dep1021 |
| Operating Mode | EL |
OE numbers (17)
Search by this OE number to find compatible parts
- MERCEDES-BENZ—1718350064
- MERCEDES-BENZ—1978350064
- MERCEDES-BENZ—2048350364
- MERCEDES-BENZ—2115060000
- MERCEDES-BENZ—2118350264
- VW—2E0965521
- VW—2E0965559
- VW—2E0965561
- OPEL—4416966
- MERCEDES-BENZ—6398350064
- OPEL / PEUGEOT—93857128
- MERCEDES-BENZ—A1718350064
- MERCEDES-BENZ—A1978350064
- MERCEDES-BENZ—A2048350364
- MERCEDES-BENZ—A2115060000
- MERCEDES-BENZ—A2118350264
- MERCEDES-BENZ—A6398350064
Where this part fits
Original-fit position for OE 1718350064.
About this product
When auxiliary water pump cooling water circuit performance matters, the DAYCO DEP1021 delivers — built to the same dimensional and material standards as the original part it replaces. The part is built to the following specification: Operating Mode: Electric. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Compatible with MERCEDES-BENZ, OPEL, VAUXHALL, VW vehicles; use the vehicle selector above to confirm exact fitment for your make, model, and engine variant. Fitment data is sourced from TecDoc, the authoritative European parts catalogue. This part supersedes original equipment references: 0392023004, 11021, 1718350064, 1978350064 and 32 more. Matching these numbers confirms a like-for-like replacement with no loss of function. DAYCO is a recognised supplier of automotive replacement components to independent workshops and dealer networks across Europe. All parts are sourced from authorised distribution channels and carry full manufacturer traceability — you receive exactly the same component supplied to professional garages and dealer workshops. If fitment or specifications do not match your vehicle, our technical team can help identify the correct alternative — use the vehicle selector or contact us with your VIN for a guaranteed-fit recommendation. Replacing worn components on schedule preserves your vehicle's safety, reliability, and resale value — and aftermarket parts from established brands deliver OEM-equivalent performance at a fraction of the dealer price. Every part is dispatched with tracked delivery and a 14-day money-back guarantee with hassle-free returns.
About DAYCO
Dayco, founded in 1905 in Dayton, Ohio, USA, is a global leader in engine belt drive systems and power transmission products. Dayco specialises in timing belts, serpentine belts, tensioners, idler pulleys, and water pumps. As an OE supplier to major manufacturers including Fiat, Ford, General Motors, and Volkswagen, Dayco products meet exact factory specifications. With over a century of belt technology expertise and advanced polymer engineering, Dayco delivers reliable, long-lasting belt drive components trusted by professionals worldwide.
Suitable cars
Equivalent products (19)
Auxiliary Water Pump Cooling Water Circuit DAYCO DEP1021 — compatible car models
| Car models | MERCEDES-BENZ: A-CLASS Saloon (V177), A-CLASS (W169), A-CLASS (W177), AMG GT (C190), AMG GT Roadster (R190), AMG GT (X290), B-CLASS Sports Tourer (W245), B-CLASS Sports Tourer (W246, W242), B-CLASS Sports Tourer (W247), C-CLASS Convertible (A205) (+20 more) |
|---|---|
| Engines | A 160 d (177.102); A 150 (169.031, 169.331); A 160 (177.082); GT (190.377); GT (190.482); 4.0 63 S E Performance 4-matic+ (290.679); B 150 (245.231); B 220 d 4-matic (246.205); B 160 (247.082); AMG C 63 (205.486); C 180 (204.331); AMG C 63 (205.386); C 180 (204.231); AMG C 63 (205.286); C 180 CGI (204.031) (+15 more) |
| Year of manufacture | 2003-2023 |
| Manufacturer article number (MPN) | DEP1021 |
| OE part numbers | 1718350064, 1978350064, 2048350364, 2115060000, 2118350264, 2E0965521, 2E0965559, 2E0965561, 4416966, 6398350064, 93857128, A1718350064, A1978350064, A2048350364, A2115060000, A2118350264, A6398350064 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
DAYCO dep1021 . Operating Mode: EL
- 1x Auxiliary Water Pump Cooling Water Circuit
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 Auxiliary Water Pump Cooling Water Circuit compatible with my car?
This Auxiliary Water Pump Cooling Water Circuit fits MERCEDES-BENZ, OPEL, VAUXHALL, VW 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 DAYCO Auxiliary Water Pump Cooling Water Circuit have?
This DAYCO Auxiliary Water Pump Cooling Water Circuit has the following specifications: Operating Mode: EL. Check the full specifications table above for complete details.
What OE part numbers does this Auxiliary Water Pump Cooling Water Circuit replace?
This Auxiliary Water Pump Cooling Water Circuit replaces OE part numbers: 1718350064, 1978350064, 2048350364, 2115060000, 2118350264, 2E0965521, 2E0965559, 2E0965561 and 9 more. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Auxiliary Water Pump Cooling Water Circuit cost?
This DAYCO Auxiliary Water Pump Cooling Water Circuit is available for £55.99. Auxiliary Water Pump Cooling Water Circuit prices vary depending on brand, specifications, and vehicle compatibility. DAYCO parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Auxiliary Water Pump Cooling Water Circuit?
Regular inspection of your Auxiliary Water Pump Cooling Water Circuit is recommended as part of routine vehicle maintenance. Watch for changes in performance, unusual noises, or visual signs of wear. Consult your vehicle's owner manual for manufacturer-recommended replacement intervals specific to your make and model.
What tools do I need to replace a Auxiliary Water Pump Cooling Water Circuit?
Tools required vary by vehicle make and model. Generally, a basic socket set, screwdrivers, and vehicle-specific tools may be needed. We recommend consulting a workshop manual for your specific vehicle, or having the Auxiliary Water Pump Cooling Water Circuit fitted by a professional mechanic.
Can I use this part as a replacement for OE 1718350064?
Yes, this DAYCO Auxiliary Water Pump Cooling Water Circuit is a direct replacement for OE part number 1718350064. 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 DAYCO DEP1021 the same as the DAYCO DEP1019?
No, while both are Auxiliary Water Pump Cooling Water Circuit parts, they are different products. The DAYCO DEP1021 has Operating Mode: EL. The DAYCO DEP1019 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.
