Jeep Gladiator Engines by Year

Jeep has sold two pickups called Gladiator: Kaiser's full-size truck of 1963–1971, which continued as the J-series, and the Wrangler-based Gladiator that arrived for 2020.

Pick a year to see every engine offered that model year, with its code, rated horsepower and the trims it came in. Each engine links to its full specs.

Jump to a year

1963–1971: 1963 · 1964 · 1965 · 1966 · 1967 · 1968 · 1969 · 1970 · 1971

JT: 2020 · 2021 · 2022 · 2023 · 2024 · 2025 · 2026

1963–1971

The first Gladiator shared the Wagoneer's engines: the Tornado six, then AMC's 232 six and the 327 Vigilante V8, Buick's 350 Dauntless V8, and AMC sixes and V8s from 1971.

1963 Gladiator engines

Engine	Rated	Offered in
230 inline-six Tornado OHC 6	140 hp gross	Standard engine

1964 Gladiator engines

Engine	Rated	Offered in
230 inline-six Tornado OHC 6	140 hp gross	Standard engine

1965 Gladiator engines

Engine	Rated	Offered in
230 inline-six Tornado OHC 6	140 hp gross	Standard engine
232 inline-six Hi-Torque 6	145 hp gross	Standard engine
327 V8 Vigilante V-8	250 hp gross	Optional

1966 Gladiator engines

Engine	Rated	Offered in
232 inline-six Hi-Torque 6	145 hp gross	Standard engine
327 V8 Vigilante V-8	250 hp gross	Optional

1967 Gladiator engines

Engine	Rated	Offered in
232 inline-six Hi-Torque 6	145 hp gross	Standard engine
327 V8 Vigilante V-8	250 hp gross	Optional

1968 Gladiator engines

Engine	Rated	Offered in
232 inline-six Hi-Torque 6	145 hp gross	Standard engine
350 V8 Dauntless V-8	230 hp gross	Optional

1969 Gladiator engines

Engine	Rated	Offered in
232 inline-six Hi-Torque 6	145 hp gross	Standard engine
350 V8 Dauntless V-8	230 hp gross	Optional

1970 Gladiator engines

Engine	Rated	Offered in
232 inline-six Hi-Torque 6	145 hp gross	Standard engine
350 V8 Dauntless V-8	230 hp gross	Optional

1971 Gladiator engines

Engine	Rated	Offered in
232 inline-six Hi-Torque 6	145 hp gross	Standard engine
258 inline-six AMC 258	150 hp gross	Standard engine (mid-1971 on)
304 V8 AMC 304	210 hp gross	Optional (mid-1971 on)
350 V8 Dauntless V-8	230 hp gross	Optional
360 V8 AMC 360 2-bbl	245 hp gross	Optional (mid-1971 on)

JT (2020–2026)

The Wrangler-based Gladiator uses the 3.6 Pentastar V6, with the 3.0 EcoDiesel offered for 2021–2023.

2020 Gladiator engines

Engine	Rated	Offered in
3.6L / 220 V6 Pentastar 3.6	285 hp net	All trims

2021 Gladiator engines

Engine	Rated	Offered in
3.0L / 182 V6 diesel EcoDiesel 3.0	260 hp net	Optional, 8-speed auto only, Sport/Overland/Rubicon (2021); FarOut edition 2023
3.6L / 220 V6 Pentastar 3.6	285 hp net	All trims

2022 Gladiator engines

Engine	Rated	Offered in
3.0L / 182 V6 diesel EcoDiesel 3.0	260 hp net	Optional, 8-speed auto only, Sport/Overland/Rubicon (2021); FarOut edition 2023
3.6L / 220 V6 Pentastar 3.6	285 hp net	All trims

2023 Gladiator engines

Engine	Rated	Offered in
3.0L / 182 V6 diesel EcoDiesel 3.0	260 hp net	Optional, 8-speed auto only, Sport/Overland/Rubicon (2021); FarOut edition 2023
3.6L / 220 V6 Pentastar 3.6	285 hp net	All trims

2024 Gladiator engines

Engine	Rated	Offered in
3.6L / 220 V6 Pentastar 3.6	285 hp net	All trims

2025 Gladiator engines

Engine	Rated	Offered in
3.6L / 220 V6 Pentastar 3.6	285 hp net	All trims

2026 Gladiator engines

Engine	Rated	Offered in
3.6L / 220 V6 Pentastar 3.6	285 hp net	All trims

Working on one of these engines?

• Engine displacement from bore and stroke
• Static and dynamic compression ratio
• Which camshaft for your build
• What size carburetor
• Horsepower to torque at any RPM
• Torque converter stall speed

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