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Home›Engines›Perkins 1004G

Perkins 1004G Engine Engine

The Perkins 1004G is a 3.99 L 4-cylinder naturally aspirated engine rated at 1500 rpm, producing up to 49 kW. It powers generator sets from FG Wilson, Olympian and Perkins, including the P40P1, P44E1, P45P1 and P50E1. It holds 8.1 L (2.1 gal) of oil and 21 L (5.5 gal) of coolant.

Also known as: Perkins 1004G, 1004G

3.99 L
Displacement
4
Cylinders
1500 rpm
Rated speed
49 kW
Gross power

Engine specifications

Oil capacity8.1 L
Coolant capacity21.0 L
Displacement3.99 L
Cylinders4
AspirationNaturally aspirated
Rated speed1500 rpm
Gross power49 kW

Generator sets powered by this engine

7

Shared across brands: FG Wilson, Olympian, Perkins

FG Wilson P40P1FG Wilson P44E1FG Wilson P45P1FG Wilson P50E1FG Wilson XD45P1Olympian GEP50Perkins 1004

Aftermarket parts that fit this engine

60
22641A057 PartsGeek 2641A067 PartsGeek woodline $33.83 641A082 PartsGeek ULPK0005 PartsGeek yemparts $89.17 ULPK0034 PartsGeek yemparts $89.17 1004-42 PartsGeek yemparts $32.17 1004-40TW PartsGeek yemparts $32.17 1004-40T PartsGeek woodline $17.64 1004-40 PartsGeek yemparts $32.17 1004G PartsGeek yemparts $32.17 135Ti PartsGeek yemparts $32.17 1004-4T PartsGeek yemparts $32.17 1004-4 PartsGeek yemparts $32.17 U5MW0106 PartsGeek FridayParts $67.40 T4.236 PartsGeek woodline $19.32 1004-40S PartsGeek yemparts $47.69 A4.212 PartsGeek yemparts $89.83 A4.236 PartsGeek yemparts $101.41 A4.248 PartsGeek yemparts $52.40 U5MW0195 PartsGeek FridayParts $85.00 4131E403 PartsGeek FridayParts $85.00 U5MW0166 PartsGeek FridayParts $85.00 2418F437 PartsGeek FridayParts $18.80 1006-60T PartsGeek woodline $17.64 4.236 PartsGeek woodline $408.21 6.354 PartsGeek kuduparts $67.00 1104D-44 PartsGeek yemparts $33.44 1106C-E60TA PartsGeek yemparts $178.80 120-480 PartsGeek P44E1 PartsGeek 45KVA PartsGeek 31415363 PartsGeek FridayParts $235.99 2641A082 PartsGeek FridayParts $26.68 4222106R91 PartsGeek FridayParts $26.68 2846130 PartsGeek FridayParts $12.00 504-2 PartsGeek yemparts $36.91 D3.152 PartsGeek woodline $4.98 903-27 PartsGeek yemparts $33.44 4.108 PartsGeek woodline $6.76 4.203 PartsGeek woodline $34.70 4.248 PartsGeek 1104D-44T PartsGeek yemparts $36.91 1104C-44 PartsGeek yemparts $33.44 704-30 PartsGeek woodline $7.33 1006-60 PartsGeek yemparts $33.44 TV8.640 PartsGeek V8.640 PartsGeek 31434307 PartsGeek 2645A030 PartsGeek FridayParts $185.00 4132F056 PartsGeek FridayParts $95.47 26510337 PartsGeek FridayParts $25.30 404C-22 PartsGeek woodline $19.88 104-19 PartsGeek yemparts $30.63 104-22 PartsGeek woodline $30.35 ZZ80221 PartsGeek woodline $725.90 1004TG PartsGeek yemparts $159.21 2645A017 PartsGeek FridayParts $168.50 17/110300 PartsGeek FridayParts $168.50 1006-6 PartsGeek yemparts $33.44 410B PartsGeek yemparts $36.17

Parts listed by aftermarket suppliers as fitting this engine — leads compiled from supplier catalogs; verify the exact part for your serial number.

Filters for this engine

  • Fuel filter: Perkins T64102003 Donaldson P550588 Ac Delco PF859
  • Oil filter: Perkins T74105021 Donaldson P554403 Ac Delco PF2201

Cross-referenced via Donaldson + OEM/engine-maker interchange — options to verify against your serial number, not confirmed for every exact variant.

Common questions

What is the oil capacity of the Perkins 1004G?

The Perkins 1004G engine has an oil capacity of 8.1 liters.

What is the displacement of the Perkins 1004G?

The Perkins 1004G has a displacement of 3.99 liters with 4 cylinders.

Which generators use the Perkins 1004G engine?

The Perkins 1004G powers 7 generator set(s), including FG Wilson P40P1, FG Wilson P44E1, FG Wilson P45P1, FG Wilson P50E1, FG Wilson XD45P1.