Genuine & Aftermarket

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OE Reference Cross-Match

45 4021

89 parts found
Exact match
Expansion Tank, coolant AUDI A6 C6 (4F2) 2.4

NRF · Aftermarket

454021 - Expansion Tank, coolant AUDI A6 C6 (4F2) 2.4

Out of stock · Dispatch in 3 business days

24.13 USD
Exact match
CHEVROLET
454021
100% Genuine CHEVROLET

CHEVROLET · Genuine

454021 - Bearing, differential VW VOLKSBUS 9.150 EOD

Out of stock · Dispatch in 3 business days

Price on Request
Exact match
Carbus24
45-4021
Aftermarket IPD

IPD · Aftermarket

45-4021 - Tappet BMW 5 Touring (E39) 525 tds

Out of stock · Dispatch in 3 business days

Price on Request
Bearing FORD Cargo 609

PFI · Aftermarket

HM807046/10 - Bearing FORD Cargo 609

In stock · Dispatch in 3 business days

27.97 USD
Expansion Tank, coolant AUDI A6 C6 (4F2) 2.4

MAHLE · Aftermarket

CRT 20 000S - Expansion Tank, coolant AUDI A6 C6 (4F2) 2.4

In stock · Dispatch in 3 business days

30 USD
Carbus24
8MA376702454
Aftermarket BEHR

BEHR · Aftermarket

8MA376702454 - EXPANSION TANK/A6

In stock · Dispatch in 3 business days

30 USD
Tappet BMW 5 Touring (E39) 525 tds

FEBI BILSTEIN · Aftermarket

01591 - Tappet BMW 5 Touring (E39) 525 tds

Out of stock · Dispatch in 3 business days

5.77 USD
Expansion Tank, coolant AUDI A6 C6 Avant (4F5) 3.2 FSI

NISSENS · Aftermarket

996288 - Expansion Tank, coolant AUDI A6 C6 Avant (4F5) 3.2 FSI

Out of stock · Dispatch in 3 business days

22.84 USD
Tappet BMW 5 Touring (E39) 525 tds

TOPRAN · Aftermarket

205 569 - Tappet BMW 5 Touring (E39) 525 tds

Out of stock · Dispatch in 3 business days

5.28 USD
Tappet BMW 5 Touring (E39) 525 tds

SWAG · Aftermarket

99 18 0010 - Tappet BMW 5 Touring (E39) 525 tds

Out of stock · Dispatch in 3 business days

5.63 USD
Expansion Tank, coolant AUDI A6 C6 Avant (4F5) 3.2 FSI

VAICO · Aftermarket

V10-0979 - Expansion Tank, coolant AUDI A6 C6 Avant (4F5) 3.2 FSI

Out of stock · Dispatch in 3 business days

18.98 USD
Expansion Tank, coolant AUDI A6 C6 (4F2) 3.2 FSI

KAMOKA · Aftermarket

7720046 - Expansion Tank, coolant AUDI A6 C6 (4F2) 3.2 FSI

Out of stock · Dispatch in 3 business days

24.09 USD
Expansion Tank, coolant AUDI A6 C6 (4F2) 3.2 FSI

ORIGINAL IMPERIUM · Aftermarket

44199 - Expansion Tank, coolant AUDI A6 C6 (4F2) 3.2 FSI

Out of stock · Dispatch in 3 business days

28.93 USD
Expansion Tank, coolant AUDI A6 C6 (4F2) 3.2 FSI

FEBI BILSTEIN · Aftermarket

44510 - Expansion Tank, coolant AUDI A6 C6 (4F2) 3.2 FSI

Out of stock · Dispatch in 3 business days

24.47 USD
Expansion Tank, coolant AUDI A6 C6 (4F2) 3.2 FSI

TOPRAN · Aftermarket

113 616 - Expansion Tank, coolant AUDI A6 C6 (4F2) 3.2 FSI

Out of stock · Dispatch in 3 business days

17.74 USD
Water Tank, radiator AUDI A6 C6 (4F2) 3.2 FSI

MEAT & DORIA · Aftermarket

2035060 - Water Tank, radiator AUDI A6 C6 (4F2) 3.2 FSI

Out of stock · Dispatch in 3 business days

28.85 USD
Tappet

KOLBENSCHMIDT · Aftermarket

50006475 - Tappet

Out of stock · Dispatch in 3 business days

5.1 USD
Expansion Tank, coolant AUDI A6 C6 (4F2) 3.2 FSI

SWAG · Aftermarket

30 94 4510 - Expansion Tank, coolant AUDI A6 C6 (4F2) 3.2 FSI

Out of stock · Dispatch in 3 business days

22.1 USD
Tappet BMW 5 Touring (E39) 525 tds

MAXGEAR · Aftermarket

17-0031 - Tappet BMW 5 Touring (E39) 525 tds

Out of stock · Dispatch in 3 business days

3.44 USD
Tappet BMW 5 Touring (E39) 525 tds

AJUSA · Aftermarket

85007400 - Tappet BMW 5 Touring (E39) 525 tds

Out of stock · Dispatch in 3 business days

30.26 USD
Shaft Seal, wheel hub VOLVO FL6 FL 608

DT Spare Parts · Aftermarket

2.65007 - Shaft Seal, wheel hub VOLVO FL6 FL 608

Out of stock · Dispatch in 3 business days

29.12 USD
Clutch Pressure Plate IVECO EUROCARGO I-III 75 E 15, 75 E 15 P, 80 E 15

DT Spare Parts · Aftermarket

6.40001 - Clutch Pressure Plate IVECO EUROCARGO I-III 75 E 15, 75 E 15 P, 80 E 15

Out of stock · Dispatch in 3 business days

181.76 USD
Tappet BMW 5 (E34) 525 iX 24V

TRUCKTEC · Aftermarket

08.10.033 - Tappet BMW 5 (E34) 525 iX 24V

Out of stock · Dispatch in 3 business days

4.97 USD
Bearing FORD Cargo 609

JOHN DEERE · Genuine

JD8255 - Bearing FORD Cargo 609

Out of stock · Dispatch in 3 business days

Price on Request
Bearing FORD Cargo 609

ALLIS-CHALMERS · Genuine

AMX46120 - Bearing FORD Cargo 609

Out of stock · Dispatch in 3 business days

Price on Request
Tappet

BMW · Genuine

11321739299 - Tappet

Out of stock · Dispatch in 3 business days

Price on Request
Spring Pack

KILEN · Aftermarket

640001 - Spring Pack

Out of stock · Dispatch in 3 business days

Price on Request
Tappet

GENERAL MOTORS · Genuine

90509386 - Tappet

Out of stock · Dispatch in 3 business days

Price on Request
Bearing FORD Cargo 609

JOHN DEERE · Genuine

JD9078 - Bearing FORD Cargo 609

Out of stock · Dispatch in 3 business days

Price on Request
CHRYSLER
4746978
100% Genuine CHRYSLER

CHRYSLER · Genuine

4746978 - Bearing VW VOLKSBUS 9.150 EOD

Out of stock · Dispatch in 3 business days

Price on Request
AUDI
4F0121403N
100% Genuine AUDI

AUDI · Genuine

4F0121403N - Expansion Tank, coolant VW BORA I (1J2) 1.6

Out of stock · Dispatch in 3 business days

Price on Request
Carbus24
043020N
Aftermarket AKS DASIS

AKS DASIS · Aftermarket

043020N - Expansion Tank, coolant AUDI A6 C6 (4F2) 2.4

Out of stock · Dispatch in 3 business days

Price on Request
Tappet

AUTEX · Aftermarket

955026 - Tappet

Out of stock · Dispatch in 3 business days

Price on Request
OPEL
640001
100% Genuine OPEL

OPEL · Genuine

640001 - Tappet MULTICAR M25 1,9

Out of stock · Dispatch in 3 business days

Price on Request
VOLVO
6633117
100% Genuine VOLVO

VOLVO · Genuine

6633117 - Bearing VW VOLKSBUS 9.150 EOD

Out of stock · Dispatch in 3 business days

Price on Request
Tappet BMW 5 Touring (E39) 525 tds

Schaeffler INA · Aftermarket

420 0041 10 - Tappet BMW 5 Touring (E39) 525 tds

Out of stock · Dispatch in 3 business days

Price on Request
SKF
HM 807046/010/QCL7C
Aftermarket SKF

SKF · Aftermarket

HM 807046/010/QCL7C - Bearing, differential

Out of stock · Dispatch in 3 business days

Price on Request
Water Tank, radiator AUDI A6 C6 (4F2) 3.2 FSI

HOFFER · Aftermarket

2035060 - Water Tank, radiator AUDI A6 C6 (4F2) 3.2 FSI

Out of stock · Dispatch in 3 business days

Price on Request
Expansion Tank, coolant AUDI A6 C6 (4F2) 3.2 FSI

DOGA · Aftermarket

40X0027 - Expansion Tank, coolant AUDI A6 C6 (4F2) 3.2 FSI

Out of stock · Dispatch in 3 business days

Price on Request
Carbus24
2140181
Aftermarket METZGER AUTOTEILE

METZGER AUTOTEILE · Aftermarket

2140181 - Expansion Tank, coolant AUDI A6 C6 (4F2) 3.2 FSI

Out of stock · Dispatch in 3 business days

Price on Request
Tappet

BBR Automotive · Aftermarket

003-30-12750 - Tappet

Out of stock · Dispatch in 3 business days

Price on Request
Carbus24
20-00540-SX
Aftermarket STELLOX

STELLOX · Aftermarket

20-00540-SX - Tappet BMW 5 Touring (E39) 525 tds

Out of stock · Dispatch in 3 business days

Price on Request
BMW
11321739298
100% Genuine BMW

BMW · Genuine

11321739298 - Tappet BMW 5 Touring (E39) 525 tds

Out of stock · Dispatch in 3 business days

Price on Request
BMW
11321739434
100% Genuine BMW

BMW · Genuine

11321739434 - Tappet BMW 5 Touring (E39) 525 tds

Out of stock · Dispatch in 3 business days

Price on Request
Tappet

LAND ROVER · Genuine

STC2144 - Tappet

Out of stock · Dispatch in 3 business days

Price on Request
Expansion Tank, coolant AUDI A6 C6 Avant (4F5) 2.7 TDI

NTY · Aftermarket

CZW-AU-006 - Expansion Tank, coolant AUDI A6 C6 Avant (4F5) 2.7 TDI

Out of stock · Dispatch in 3 business days

Price on Request

Cross-referenced parts are cataloged as fitting the same application but are not guaranteed to be identical to the original manufacturer part. Verify fitment against your OE number or VIN before ordering.

Frequently Asked Questions

How do I know if a part matching 454021 number by NRF fits my car?

Compare your original OE number against the OE Reference Numbers listed above, and check the dimensions or specifications against your original part.

What is the difference between OE and aftermarket parts?

OE parts match the original manufacturer specification. Aftermarket parts are cross-referenced to fit the same application, usually at a lower price.

Can I search by my vehicle instead of an OE number?

Yes — select your vehicle from the sidebar to see parts confirmed to fit your car.

What if I'm not sure which OE number I have?

Send us your VIN or the number printed on your original part and our team can confirm the correct match before you order.