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CP247
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BrandTOPRAN
MPN503 121
OE refs1
SKU0301-503 121

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SpecificationValue
BrandTOPRAN

OE numbers (1)

Search by this OE number to find compatible parts

Where this part fits

Original-fit position for OE 13717597586. The red ring marks where this part installs on the vehicle.

Filtered air pipe — BMW 3 F35 — 13 Fuel Preparation System › 13_1480 Air duct, intake silencer
BMW 3 F35 · 13 Fuel Preparation System › 13_1480 Air duct, intake silencerPosition 01

About this product

TOPRAN Intake Hose Air Filter (503 121) is manufactured to OEM tolerances, ensuring a direct-fit replacement that restores your vehicle to factory specification without any modification. Technical specifications — Fitting Position: 90, Material: Plastic, Hose Type: Steel — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Compatible with BMW 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: 001-10-25378, 004-028-037, 027436, 08.14.093 and 46 more. Matching these numbers confirms a like-for-like replacement with no loss of function. TOPRAN is a recognised supplier of automotive filtration 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 TOPRAN

TOPRAN, part of the Hans Thomsen Group headquartered in Hamburg, Germany, is a growing independent aftermarket brand focused on providing quality parts at accessible prices. TOPRAN offers a comprehensive range covering engine, cooling, electrical, braking, and body components for European vehicles. All TOPRAN products are manufactured to meet OE specifications and undergo quality testing before distribution. Combining German quality management with competitive pricing, TOPRAN is an excellent choice for cost-conscious motorists and workshops who do not want to compromise on part quality.

Suitable cars

Equivalent products (50)

Show all 50 OE numbers
4U Autoparts16561BW
AKRON-MALÒ027436
AKRON-MALÒ27436
AslyxAS-535724
at autoteile germanyat23809
BAPMICBF0733560008
BBR Automotive001-10-25378
BE TURBO700922
BOGAPB1710105
BSGBSG 15-720-095
CAUTEX753075
FARE-MX15648
FARE SA15648
Frankberg5481FB0001651
FREY887600101
GATES09-0196
GOOMCIH-0122
hajus Autoteile1151569
IBRAS35050
IBRAS35098
MATRIX PROMX01141009
MAXGEAR18-0996
Metalcaucho09976
METZGER AUTOTEILE2389004
NRF165032£47.99
ORIGINAL IMPERIUM225332
OSSCA34721
PATRONPH4171
PLYOMP753075
PREXApartsP226584
PREXApartsP226817
RAPRO19866
RAPROR19866
RIDEX1591I0045
SEIM982031
StarkSKIHA-3280044
STCT409976
SWAG20 10 4354
TRICLO522594
TRUCKTEC AUTOMOTIVE08.14.093
WILMINK GROUPWG2240847
YTTY8031

Intake Hose Air Filter TOPRAN 503 121compatible car models

Car modelsBMW: 1 (F20), 1 (F21), 3 (F30, F80), 3 Touring (F31)
Engines114 i; 316 i
Year of manufacture2011-2019
Manufacturer article number (MPN)503 121
OE part numbers1371 7 597 586
Compatibility check

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Description and what's included

TOPRAN 503121 . Fitting Position: 90. Hose Type: 1. Material: 6

What's included:
  • 1x Intake Hose Air Filter
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 Intake Hose Air Filter compatible with my car?

This Intake Hose Air Filter 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 TOPRAN Intake Hose Air Filter have?

This TOPRAN Intake Hose Air Filter has the following specifications: Fitting Position: 90; Material: 6; Hose Type: 1. Check the full specifications table above for complete details.

What OE part numbers does this Intake Hose Air Filter replace?

This Intake Hose Air Filter replaces OE part numbers: 1371 7 597 586. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.

How much does a Intake Hose Air Filter cost?

This TOPRAN Intake Hose Air Filter is available for £39.99. Intake Hose Air Filter prices vary depending on brand, specifications, and vehicle compatibility. TOPRAN parts offer a balance of quality and value, backed by our 14-day money-back guarantee.

How do I know when to replace my Intake Hose Air Filter?

Regular inspection of your Intake Hose Air Filter 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 Intake Hose Air Filter?

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 Intake Hose Air Filter fitted by a professional mechanic.

Can I use this part as a replacement for OE 1371 7 597 586?

Yes, this TOPRAN Intake Hose Air Filter is a direct replacement for OE part number 1371 7 597 586. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.

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