Jeep engines

The 230 cu in side-valve six of the WC trucks, the M37 and the first Power Wagons, 78 hp.

1 vehicle: M715 1¼-ton truck

The 134 cu in side-valve four of the wartime MB and the first civilian Jeeps, 60 hp.

7 vehicles: Willys MB / Ford GPW, Ford GPW, Ford GPA amphibious Jeep, Jeep CJ-2A and 3 more

The F-head development of the Go Devil, 72 hp, the CJ engine into the 1970s.

11 vehicles: M38 / M38A1, M38A1 CDN, Mitsubishi Jeep J3, M170 frontline ambulance and 7 more

Ford’s straight-sixes — 170, 200, 223 and 300 cu in — of the Bronco and F-series.

1 vehicle: M676–M679 military Forward Control

The 226 cu in L-head six of the FC-170 and the Station Wagon, 105 hp.

2 vehicles: Jeep FC-150 / FC-170, FC-170 Dual Rear Wheel

The small-block V8 — 283, 305, 327 and 350 cu in — of the K-series, Blazer and Suburban.

3 vehicles: Wagoneer / Grand Wagoneer SJ, Gladiator / J-series truck, Super Wagoneer

International’s own V8s — 266, 304, 345 and 392 cu in — of the Scout, Travelall and light line.

2 vehicles: Wrangler JL / Gladiator JT, Wrangler 4xe

The 2.7-litre diesel four of the late Mitsubishi Jeep and the Type 73.

1 vehicle: Mitsubishi Jeep J3

Kaiser Jeep’s overhead-cam 230 cu in six of the Wagoneer and Gladiator.

1 vehicle: Gladiator / J-series truck

The LA-series 318 and 360 V8s of the Power Wagon, Ramcharger and Ram.

2 vehicles: Wagoneer Limited, Grand Wagoneer

AMC’s straight-six family, 232 and 258 cu in, the Jeep engine of the 1970s and 1980s.

2 vehicles: Wagoneer / Grand Wagoneer SJ, Gladiator / J-series truck

The 232 cu in AMC six, the smaller of the pair that powered Jeeps from 1971.

2 vehicles: Jeep CJ-5, Jeep CJ-7

The 225 cu in Buick V6 Kaiser Jeep bought for the CJ-5 and CJ-6 in 1965.

4 vehicles: Jeep CJ-5, CJ-5 Tuxedo Park Mark IV, CJ-6 Tuxedo Park, CJ-5 Renegade

The 327 cu in AMC V8 of the Wagoneer and Gladiator, 270 hp.

1 vehicle: Super Wagoneer

AMC’s V8 family — 304, 360 and 401 cu in — in the Wagoneer, Gladiator and J-series.

2 vehicles: Wagoneer / Grand Wagoneer SJ, Gladiator / J-series truck

The 304 cu in V8 of the CJ-5, CJ-7 and the full-size Jeeps.

8 vehicles: Jeep CJ-5, CJ-5 Renegade, CJ-5 Super Jeep, CJ-7 Renegade and 4 more

The 360 cu in V8 of the J-series and the M715’s civilian cousins.

8 vehicles: Cherokee SJ, Cherokee Chief, J-10 Honcho, Cherokee Golden Eagle and 4 more

The 258 cu in six of the CJ, Cherokee and Wagoneer — the archetypal AMC Jeep engine.

21 vehicles: CJ-5 Renegade, CJ-5 Super Jeep, Cherokee S, Cherokee SJ and 17 more

The largest AMC V8, 401 cu in, in the Wagoneer and J-series.

5 vehicles: Wagoneer / Grand Wagoneer SJ, Gladiator / J-series truck, Cherokee S, Cherokee SJ and 1 more

Peugeot’s 2.5-litre diesel four, in the P4, the Mahindra Jeeps and the Dangel conversions.

1 vehicle: Mahindra CJ-3B

AMC’s 150 cu in four of the CJ-7, Wrangler and Cherokee.

22 vehicles: Jeep CJ-5, CJ-7 Renegade, Jeep CJ-7, CJ-5 Laredo and 18 more

The fuel-injected 4.0 of the XJ Cherokee and the TJ Wrangler, the six Jeep enthusiasts rate above all.

25 vehicles: Cherokee XJ Chief, Cherokee XJ Pioneer, Wagoneer XJ, Cherokee XJ and 21 more

The 2.4-litre four of the late TJ Wrangler.

1 vehicle: Wrangler TJ

The modern Hemi V8 — 5.7 and 6.4 naturally aspirated, 6.2 supercharged in the TRX.

1 vehicle: Wrangler Rubicon 392

The 3.8-litre V6 of the 2007–11 Wrangler JK.

4 vehicles: Wrangler JK, Wrangler JK Unlimited, Wrangler JK Rubicon, Wrangler JK Sahara

VM Motori’s 2.8-litre turbodiesel, the export Wrangler’s diesel.

3 vehicles: Wrangler JK, Wrangler JK Unlimited, Jeep J8

Chrysler’s 3.6-litre V6, the Wrangler JK, JL and Gladiator petrol engine.

13 vehicles: Wrangler JK, Wrangler JK Unlimited, Wrangler JK Rubicon, Wrangler JK Sahara and 9 more

The VM Motori 3.0-litre V6 turbodiesel of the Ram 1500 and the Wrangler.

4 vehicles: Wrangler JL Rubicon, Wrangler JL / Gladiator JT, Gladiator JT Rubicon, Wrangler 4xe

The 2.0-litre turbocharged four of the Wrangler JL.

2 vehicles: Wrangler JL / Gladiator JT, Wrangler 4xe