Enginetech Engine Expansion Plug Kits

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Enginetech offers engine expansion plug kits for a variety of car, truck, SUV, high performance, and marine applications. Machined from brass or steel, the kits inc

Enginetech offers engine expansion plug kits for a variety of car, truck, SUV, high performance, and marine applications. Machined from brass or steel, the kits include a variety of sizes to seal whatever ports need to be closed off. The plugs are produced in accordance with factory specs to ensure proper fit and performance. They meet or exceed OE quality standards. Order the kit recommended for your engine.

Expansion plugs (or freeze plugs) serve two primary purposes: to block coolant leaks from internal passages, and to protect the engine block from cracking if the coolant inside freezes and expands. The plugs

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Enginetech Engine Expansion Plug Kits PK14B

Engine Expansion Plug Kit 55-03 CHR/DOD/JEP/PLY 3.7L/4.5L/4.9L/5.2L/5.6L/5.9L

Part Number: EGN-PK14B

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK18B

Engine Expansion Plug Kit 66-91 AMC/JEP 4.7L/5.0L/5.6L/5.9L/6.4L/6.6L

Part Number: EGN-PK18B

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK1

Engine Expansion Plug Kit 55-02 BUI/CAD/CHV/GMC/OLD/PON 3.3L/3.8L/4.3L/4.4L/4.6L/4.9L/5.0L/5.3L/5.7L

Part Number: EGN-PK1

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK114

Engine Expansion Plug Kit 59-79 CHR/DOD/PLY 6.3L/6.6L/6.7L/6.8L/7.0L/7.2L

Part Number: EGN-PK114

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK1B

Engine Expansion Plug Kit 55-02 BUI/CAD/CHV/GM/GMC/OLD/PON 3.3L/3.8L/4.3L/4.4L/4.6L/4.9L/5.0L/5.3L/5.7L

Part Number: EGN-PK1B

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK912

Engine Expansion Plug Kit 86-01 TOY 2.0L/2.2L

Part Number: EGN-PK912

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Estimated Ship Date: Apr 6, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK114B

Engine Expansion Plug Kit 59-79 CHR/DOD/PLY 6.3L/6.6L/6.7L/6.8L/7.0L/7.2L

Part Number: EGN-PK114B

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Estimated Ship Date: Apr 10, 2026 if ordered today

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Estimated Ship Date: Apr 10, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK13B

Engine Expansion Plug Kit 91-14 FRD/LIN/MER 4.6L/4.9L

Part Number: EGN-PK13B

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Estimated Ship Date: Apr 10, 2026 if ordered today

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Estimated Ship Date: Apr 10, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK173

Engine Expansion Plug Kit 82-94 BUI/CHV/OLD/PON 1.8L/2.0L

Part Number: EGN-PK173

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK5

Engine Expansion Plug Kit 62-89 BUI/CHV/GMC/OLD/PON 3.2L/3.8L/4.1L/4.8L

Part Number: EGN-PK5

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Estimated Ship Date: Apr 10, 2026 if ordered today

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Estimated Ship Date: Apr 10, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK42

Engine Expansion Plug Kit 77-93 AMC/BUI/CHV/GMC/JEP/PON 2.5L

Part Number: EGN-PK42

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Estimated Ship Date: Apr 10, 2026 if ordered today

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Estimated Ship Date: Apr 10, 2026 if ordered today

Enginetech Engine Expansion Plug Kits for 1997 4RUNNER, 1996 TACOMA - PK38

Engine Expansion Plug Kit 94-04 TOY 2.7L

Part Number: EGN-PK38

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Estimated Ship Date: Apr 10, 2026 if ordered today

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Estimated Ship Date: Apr 10, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK58

Engine Expansion Plug Kit 84-94 FRD/MER 2.3L/2.5L

Part Number: EGN-PK58

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK926

Engine Expansion Plug Kit 84-04 INF/MER/NIS 3.0L/3.3L

Part Number: EGN-PK926

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK59

Engine Expansion Plug Kit 82-04 AM General/CHV/GMC/Hummer 6.2L/6.5L

Part Number: EGN-PK59

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK11

Engine Expansion Plug Kit 58-78 FRD/MER 5.8L/5.9L/6.4L/7.0L

Part Number: EGN-PK11

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK25B

Engine Expansion Plug Kit 64-90 BUI/CAD/CHV/GM/GMC/OLD/PON 4.3L/4.4L/4.6L/4.9L/5.0L/5.4L/5.7L/6.6L/7.0L/7.5L

Part Number: EGN-PK25B

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK8

Engine Expansion Plug Kit 65-96 FRD 3.9L/4.9L

Part Number: EGN-PK8

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK185B

Engine Expansion Plug Kit 85-14 CHV/GM/GMC/IZU/OLD/PON 4.3L

Part Number: EGN-PK185B

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK15

Engine Expansion Plug Kit 97-14 FRD/LIN 5.4L

Part Number: EGN-PK15

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK112B

Engine Expansion Plug Kit 60-87 CHR/DOD/PLY 2.8L/3.2L/3.7L

Part Number: EGN-PK112B

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK26B

Engine Expansion Plug Kit 68-97 FRD/LIN/MER 3.9L/4.6L/4.9L/6.1L/7.0L/7.5L

Part Number: EGN-PK26B

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK25

Engine Expansion Plug Kit 64-90 BUI/CAD/CHV/GMC/OLD/PON 4.3L/5.0L/5.4L/5.7L/6.6L/7.0L/7.5L

Part Number: EGN-PK25

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK254

Engine Expansion Plug Kit 87-06 CHR/DOD/HYU/MIT/PLY 2.5L/3.0L/3.5L

Part Number: EGN-PK254

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK32

Engine Expansion Plug Kit 75-95 TOY 2.2L/2.4L

Part Number: EGN-PK32

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

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