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Details
| Specification | Value |
|---|---|
| Brand | ELSTOCK |
| MPN | 51-1398 |
| Category | Air conditioner compressor |
| Manufacturer Restriction | SANDEN |
| Belt Pulley Ø [mm] | 125 mm |
| Inlet Ø [mm] | 28.3 mm |
| Outlet Ø [mm] | 15.3 mm |
| Clutch ID | Electromagnetic |
| Net weight [kg] | 5.9 kg |
OE/OEM numbers (2)
Search by this OE number to find compatible parts
- AUDI—4K0816803E
- AUDI—4K0816803K
Where this part fits
Original-fit position for OE 4K0816803E. The red ring marks where this part installs on the vehicle.
About this product
ELSTOCK Air conditioner compressor (51-1398) is manufactured to OEM tolerances, ensuring a direct-fit replacement that restores your vehicle to factory specification without any modification. Technical specifications — Manufacturer Restriction: SANDEN, Fastening Type: 42, Belt Pulley Ø [mm]: 125 mm, Pulleys: Aluminium, Inlet Ø [mm]: 28, Cast Iron mm — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Compatible with AUDI 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: 090.305.049.310, 14-0847, 4K0816803E, 4K0816803K and 7 more. Matching these numbers confirms a like-for-like replacement with no loss of function. ELSTOCK 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 from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.
Suitable cars
Equivalent products (10)
Air conditioner compressor ELSTOCK 51-1398 — compatible car models
| Car models | AUDI: A6 Allroad C8 (4AH), A6 C8 (4A2), A6 C8 Avant (4A5), A7 Sportback (4KA) |
|---|---|
| Engines | 40 TDI Mild Hybrid quattro; 30 TDI Mild Hybrid; 40 TDI Mild Hybrid |
| Year of manufacture | 2017-2018 |
| Manufacturer article number (MPN) | 51-1398 |
| OE part numbers | 4K0816803E, 4K0816803K |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
ELSTOCK 51-1398 Air conditioner compressor. Belt Pulley Ø [mm]: 125 mm. Clutch ID: Electromagnetic. Compressor Oil: 7. Fastening Type: 42. Inlet Ø [mm]: 28,3 mm. Manufacturer Restriction: SANDEN. Net weight [kg]: 5,9 kg. Number of grooves: 6
- 1x Air conditioner compressor
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Express and standard shipping available.
- Standard delivery: 2-5 business days
- Express delivery: 1-2 business days
- 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 Air conditioner compressor compatible with my car?
This Air conditioner compressor fits AUDI 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 ELSTOCK Air conditioner compressor have?
This ELSTOCK Air conditioner compressor has the following specifications: Manufacturer Restriction: SANDEN; Fastening Type: 42; Belt Pulley Ø [mm]: 125 mm; Pulleys: 2; Inlet Ø [mm]: 28,3 mm; Outlet Ø [mm]: 15,3 mm. Check the full specifications table above for complete details.
What OE part numbers does this Air conditioner compressor replace?
This Air conditioner compressor replaces OE part numbers: 4K0816803E, 4K0816803K. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Air conditioner compressor cost?
Air conditioner compressor prices vary depending on brand, specifications, and vehicle compatibility. Check the current price above for this ELSTOCK Air conditioner compressor. All parts come with our 14-day money-back guarantee.
How do I know when to replace my Air conditioner compressor?
Regular inspection of your Air conditioner compressor 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 Air conditioner compressor?
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 Air conditioner compressor fitted by a professional mechanic.
Can I use this part as a replacement for OE 4K0816803E?
Yes, this ELSTOCK Air conditioner compressor is a direct replacement for OE part number 4K0816803E. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
