Description
Front Engine Mount Insert Kit - PFF5-4020 - 21
PFF5-4020 and PFF5-4021 Engine Mount Insert Kits are an intermediate alternative to the BMW aluminium inserts and much stiffer full replacement engine mounts available on the aftermarket. Made in our Yellow 70A durometer material, they are designed to fit the voiding of the OE mounts snuggly to restrict engine movement with a minimal increase in NVH, perfect for those with tuned road cars. Their design and flexibility also mean they can be fitted to the vehicle without removing the engine mounts themselves. Reducing engine/transmission movement by way of upgraded inserts has the following benefits: - Sharper throttle response - Improved gear shifting - More direct power transfer - More balanced on/off throttle handling - Prolonged life of the OE mounts. A small increase in NVH, usually at idle, should be expected when stiffening the connecting mount between the engine and chassis. The harder the material used, the greater the NVH transmitted. Fits N52, N54, N55 and B58 engines onlyDiagram Reference
21Compound
Road SeriesLocation on Vehicle
FrontAdjustment
Fixed



Included in the Kit:
1 x PFF5-4020 - Engine Mount Insert Kit
Replaces Part Numbers
31 12 2 405 859 - 31122405859 - 2 405 859 - 2405859
31 12 2 405 860 - 31122405860 - 2 405 860 - 2405860
31 12 6 770 849 - 31126770849 - 6 770 849 - 6770849
31 12 6 763 699 - 31126763699 - 6 763 699 - 6763699
Series / Chassis
E81 / E82 / E84 / E87 / E87N / E88 / E90 / E90N / E91 / E91N / E92 / E92N / E93 / E93N / M12Models
116d / 116i / 118d / 118i / 120d / 120i / 123d / 125i / 128i / 130i / 135i / 316d / 316i / 318d / 318i / 320d / 320i / 320si / 323i / 325d / 325i / 328i / 330d / 330i / 335d / 335i / 335is / X1 / ZinoroEngines
IB1 / M47N2 / M57N2 / N20 / N43 / N45 / N45N / N46 / N46N / N47 / N47N / N47S / N51 / N52 / N52N / N53 / N54 / N54T / N55 / N57Fitment
To fit the following vehicles
E81 N52N 130i 3 doors
E82 N51 128i Coupe
E82 N52N 125i Coupe
E82 N52N 128i Coupe
E82 N54 135i Coupe
E82 N54T M Coupe Coupe
E82 N55 135i Coupe
E84 N52N X1 25iX SAV
E84 N52N X1 28iX SAV
E84 N55 X1 35iX SAV
E87 N52 130i 5 doors
E87N N52N 130i 5 doors
E88 N51 128i Convertible
E88 N52N 125i Convertible
E88 N52N 128i Convertible
E88 N54 135i Convertible
E88 N55 135i Convertible
E89 N52N Z4 23i Roadster
E89 N52N Z4 30i Roadster
E89 N54 Z4 35i Roadster
E89 N54T Z4 35is Roadster
E90 N51 328i Saloon
E90 N51 328xi Saloon
E90 N52 323i Saloon
E90 N52 325i Saloon
E90 N52 325xi Saloon
E90 N52 330i Saloon
E90 N52 330xi Saloon
E90 N52N 323i Saloon
E90 N52N 325i Saloon
E90 N52N 325xi Saloon
E90 N52N 328i Saloon
E90 N52N 328xi Saloon
E90 N52N 330i Saloon
E90 N54 335i Saloon
E90 N54 335xi Saloon
E90N N51 328i Saloon
E90N N51 328xi Saloon
E90N N52N 323i Saloon
E90N N52N 325i Saloon
E90N N52N 325xi Saloon
E90N N52N 328i Saloon
E90N N52N 328xi Saloon
E90N N52N 330i Saloon
E90N N54 335i Saloon
E90N N54 335xi Saloon
E90N N55 335i Saloon
E90N N55 335xi Saloon
E91 N52 323i Touring
E91 N52 325i Touring
E91 N52 325xi Touring
E91 N52 330i Touring
E91 N52 330xi Touring
E91 N52N 323i Touring
E91 N52N 325i Touring
E91 N52N 325xi Touring
E91 N52N 328i Touring
E91 N52N 328xi Touring
E91 N52N 330i Touring
E91 N54 335i Touring
E91 N54 335xi Touring
E91N N52N 323i Touring
E91N N52N 325i Touring
E91N N52N 325xi Touring
E91N N52N 328i Touring
E91N N52N 328xi Touring
E91N N52N 330i Touring
E91N N54 335i Touring
E91N N54 335xi Touring
E91N N55 335i Touring
E91N N55 335xi Touring
E92 N51 328i Coupe
E92 N51 328xi Coupe
E92 N52N 323i Coupe
E92 N52N 325i Coupe
E92 N52N 325xi Coupe
E92 N52N 328i Coupe
E92 N52N 328xi Coupe
E92 N52N 330i Coupe
E92 N52N 330xi Coupe
E92 N54 335i C
oupe
E92 N54 335xi Coupe
E92N N51 328i Coupe
E92N N51 328xi Coupe
E92N N52N 323i Coupe
E92N N52N 325i Coupe
E92N N52N 325xi Coupe
E92N N52N 328i Coupe
E92N N52N 328xi Coupe
E92N N52N 330i Coupe
E92N N54T 335is Coupe
E92N N55 335i Coupe
E92N N55 335xi Coupe
E93 N51 328i Convertible
E93 N52N 323i Convertible
E93 N52N 325i Convertible
E93 N52N 328i Convertible
E93 N52N 330i Convertible
E93 N54 335i Convertible
E93N N51 328i Convertible
E93N N52N 323i Convertible
E93N N52N 325i Convertible
E93N N52N 328i Convertible
E93N N52N 330i Convertible
E93N N54T 335is Convertible
E93N N55 335i Convertible
Aftermarket Comparison Numbers
A.B.S. - 210963
BENDIX - 041764B
BIRTH - BR1813
BORG & BECK - BCA6471
DEEZA - BW-H226
DELPHI - TC1476
DIEDERICHS - 1121601
FEBI BILSTEIN - 30514
FIRST LINE - FCA6471
FORTUNE LINE - FZ6685
FRAP - 2929
JP GROUP - 1440101870
NK - 5011539
OPTIMAL - G5-703
QUINTON HAZELL - QSJ3388S
RTS - 95-09573-2
RUVILLE - 935058
SASIC - 7476093
sbs - 19025011539
SIDEM - 21075
SPIDAN - 57701
SWAG - 20 93 0514 - 20930514
TOPRAN - 501 026 - 501026
TRISCAN - 8500 11550 - 850011550
TRISCAN - 8500 11846 - 850011846
TRUCKTEC AUTOMOTIVE - 08.31.116
TRW - JTC1030
VAICO - V20-7161
DIEDERICHS - 1121602
DIEDERICHS - 1121603
DJ PARTS - DA1146
FAI AutoParts - SS5629
MONROE - L11846
MOOG - BM-TC-3738
OCAP - 394235
OCAP - 1215700
Estimated Fitting Costs
Darkside Developments offers professional in-house fitting at our workshop for all products
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| For more information, or to make a booking, please contact us. |










