Compressor, air conditioning21903

Rolls-Royce OE number, as listed in aftermarket supplier catalogues. Compare listings for this exact number, then confirm the part number and vehicle fitment before ordering.

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What each marketplace’s search lists for this number, lowest price first, Ovoko last. Listings can include other parts that name it.

AUTODOC

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New

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Ovoko

17 listings

Used

Checked 2026-10-08 23:15 UTC

€1.98 – €45.00Cheapest listing: + €10.76 shipping to Germanyestimated delivery in 5–7 daysView on Ovoko

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Aftermarket part numbers

Supplier articles whose catalogue lists 21903. Check the supplier’s own restrictions before ordering. A fitment condition under a part number is one its supplier names for at least one of the vehicles the part is listed for, not for all of them: a vehicle’s page shows which apply to it.

VALEO: 813148Compressor ID: 5SL12 Manufacturer Restriction: DENSO Refrigerant: R 134a Voltage: 12 V Oil Fill Quantity: 130 ml Belt Pulley Ø: 110 mm Number of grooves: 6 Capacity Compressor [ccm]: 123 cm³ Supplementary Article/Supplementary Info 2: with PAG compressor oil Compressor Oil: PAG 46 Weight: 5.3 kg
+8 moreShow fewer
Fitment conditions:Construction Year to: 05.2012, 10.2013 Engine Code: N45 B16 A, N54 B30 A, N55 B30 A Construction Year from: 03.2007 Transmission Type: 6-Speed Automatic Transmission, 6-Speed Manual Transmission
+1 moreShow fewer

Vehicle fitment

Engine code and production dates decide fitment. Model name and year alone don’t.

71 vehicles in 15 model series, inferred

Aftermarket parts that list 21903 fit these vehicles according to their supplier catalogues. That does not prove 21903 itself fits every one: check the engine code, production dates and the supplier’s restrictions on the model series’ vehicle pages.

BMW

14 model series · 70 vehicles

BMW model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
1 (E81)9 vehicles	08/2004 – 09/2012	N43 B16A, N43 B20A, N45 B16A, N46 B20B, N46 B20B.., N46 B20C, N46N	0005 / AAE, AAK, ACW, AGJ, AGK, AJM, AJN, AJZ, AOH, AOR, ARC, ARD, ARE, ARF, ARG, ARH, ARI, ARJ, ARK
1 (E82)2 vehicles	09/2009 – 12/2014	N43 B20A, N46 B20B.., N46 B20C..	0005 / AQF, AQG
1 (E87) 2004–20113 vehicles	06/2004 – 03/2007	N45 B16A, N46 B20B, N46 B20B.., N46 B20C	0005 / 163, 165, 166, AAJ, AAK, AAM, ACR, ACS, ACW, ART
1 (E87) LCI9 vehicles	03/2007 – 09/2012	N43 B16A, N43 B20A, N45 B16A, N46 B20, N46 B20B, N46 B20B.., N46 B20C	0005 / 163, AAE, AAM, ACW, AGJ, AGK, AJM, AJN, AJY, AJZ, AOH, AOR, ART, ARU, ARV, ARW, ARX, ARY, ARZ, ASA, ASB
1 (E88)5 vehicles	03/2007 – 12/2013	N43 B20A, N46 B20B, N46 B20B.., N46 B20C..	0005 / AMP, AMQ, AMT, AMU, ANA, AQM, AQN, AQO, AQP, AQQ
3 (E90) 2004–201110 vehicles	12/2004 – 10/2011	N43 B16A, N43 B20A, N45 B16A, N45 B20A, N46 B20B.., N46 B20C, N46B20CC, N46 B20E	0005 / 820, 871, 874, ABY, ADI, ADK, ADN, ALC, ALD, ALE, ALF, ALG, AMF, AVV, AVW, AVY, AVZ, AWD, AWE, AWF
3 (E90) LCI4 vehicles	09/2008 – 02/2012	N43 B16A, N43 B20A, N45 B16A	0005 / 871, ADI, ALC, ALD, ALF, AVV, AVW, AVZ, AWE
3 (E91) 2004–20126 vehicles	09/2005 – 06/2012	N43 B20A, N46 B20B, N46 B20B.., N46 B20C	0005 / 877, ABX, ADX, ALK, ALL, ALM, ALN, AXC, AXD, AXH, AXI
3 (E91) LCI4 vehicles	09/2008 – 08/2012	N43 B16A, N43 B20A, N46 B20B.., N46 B20C	0005 / 877, ADX, ALK, ALM, ANK, AWZ, AXD, AXI
3 (E92) 2006–20134 vehicles	06/2007 – 12/2013	N43 B16A, N43 B20A, N46 B20B	0005 / AHQ, AHR, AJS, AKW, AUW, AVB, AVC
3 (E92) LCI3 vehicles	03/2010 – 06/2013	N43 B16A, N43 B20A	0005 / AHQ, AKW, AUW, AUX, AVC
3 (E93) 2006–20135 vehicles	12/2006 – 10/2013	N43 B20A, N46 B20B, N54 B30A	0005 / AHK, AHL, AHM, AJR, AUK, AUL, AUM, AUV
3 (E93) LCI4 vehicles	03/2010 – 12/2013	N43 B20A, N54 B30A, N55 B30A	0005 / AHK, AHL, AUH, AUM, AUV
X1 (E84)2 vehicles	03/2010 – 06/2015	N46, N46N	0005 / AYQ, AYR

Rolls-Royce

1 model series · 1 vehicle

Rolls-Royce model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
Phantom VII1 vehicle	08/2002 – 07/2017	N73B68A	2009 / 001 2196 / 001 2197 / 001, AAA, AAB, AAC, AAE, AAF, AAG