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Enginetech

Enginetech Engine Expansion Plug Kits

Not Yet Reviewed

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
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 are designed to "pop out" under the pressure of expanding ice, preventing more severe damage, like a cracked block.

Showing In Stock Items. Show All 52 Items.

Results 1 - 25 of 44

Enginetech Engine Expansion Plug Kits PK17B

Enginetech Engine Expansion Plug Kits PK17B

Enginetech Engine Expansion Plug Kits PK17B

Engine Expansion Plug Kit 64-90 AMC/AMC/JEP 3.3L/3.8L/4.0L/4.2L

Part Number: EGN-PK17B

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK12B

Enginetech Engine Expansion Plug Kits PK12B

Enginetech Engine Expansion Plug Kits PK12B

Engine Expansion Plug Kit 95-10 CHR/DOD/PLY 2.4L

Part Number: EGN-PK12B

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK67B

Enginetech Engine Expansion Plug Kits PK67B

Enginetech Engine Expansion Plug Kits PK67B

Engine Expansion Plug Kit 93-94 CHR/DOD 3.5L

Part Number: EGN-PK67B

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK71B

Enginetech Engine Expansion Plug Kits PK71B

Enginetech Engine Expansion Plug Kits PK71B

Engine Expansion Plug Kit 88-03 BUI/CHV/OLD/PON 3.1L

Part Number: EGN-PK71B

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK26B

Enginetech Engine Expansion Plug Kits PK26B

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

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK14B

Enginetech Engine Expansion Plug Kits PK14B

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

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK2B

Enginetech Engine Expansion Plug Kits PK2B

Enginetech Engine Expansion Plug Kits PK2B

Engine Expansion Plug Kit 70-80 CHV/GM/GMC/OLD/PON 4.3L/4.4L/5.0L/5.7L/6.6L

Part Number: EGN-PK2B

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK59B

Enginetech Engine Expansion Plug Kits PK59B

Enginetech Engine Expansion Plug Kits PK59B

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

Part Number: EGN-PK59B

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK23B

Enginetech Engine Expansion Plug Kits PK23B

Enginetech Engine Expansion Plug Kits PK23B

Engine Expansion Plug Kit 59-75 International 4.2L/4.3L/4.4L/5.0L/5.6L/6.4L

Part Number: EGN-PK23B

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK72B

Enginetech Engine Expansion Plug Kits PK72B

Enginetech Engine Expansion Plug Kits PK72B

Engine Expansion Plug Kit 95-07 BUI/CHV/OLD/PON 3.8L

Part Number: EGN-PK72B

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK74B

Enginetech Engine Expansion Plug Kits PK74B

Enginetech Engine Expansion Plug Kits PK74B

Engine Expansion Plug Kit 98-02 CHV/GMC/IZU/PON 2.2L

Part Number: EGN-PK74B

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK824B

Enginetech Engine Expansion Plug Kits PK824B

Enginetech Engine Expansion Plug Kits PK824B

Engine Expansion Plug Kit 02-12 DOD/JEP/MIT/Ram 3.7L

Part Number: EGN-PK824B

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK244B

Enginetech Engine Expansion Plug Kits PK244B

Enginetech Engine Expansion Plug Kits PK244B

Engine Expansion Plug Kit 89-93 BUI/OLD/PON 3.3L

Part Number: EGN-PK244B

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK253B

Enginetech Engine Expansion Plug Kits PK253B

Enginetech Engine Expansion Plug Kits PK253B

Engine Expansion Plug Kit 90-98 CHR/DOD/PLY 3.3L

Part Number: EGN-PK253B

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK112B

Enginetech Engine Expansion Plug Kits PK112B

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

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK21B

Enginetech Engine Expansion Plug Kits PK21B

Enginetech Engine Expansion Plug Kits PK21B

Engine Expansion Plug Kit 68-84 CAD 6.0L/7.0L/7.7L/8.2L

Part Number: EGN-PK21B

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK114B

Enginetech Engine Expansion Plug Kits PK114B

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

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK64B

Enginetech Engine Expansion Plug Kits PK64B

Enginetech Engine Expansion Plug Kits PK64B

Engine Expansion Plug Kit 90-97 BUI/CHV/GMC/IZU/OLD/PON 2.2L

Part Number: EGN-PK64B

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK229AB

Enginetech Engine Expansion Plug Kits PK229AB

Enginetech Engine Expansion Plug Kits PK229AB

Engine Expansion Plug Kit 80-03 FRD/International 6.8L/6.9L/7.3L

Part Number: EGN-PK229AB

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK18B

Enginetech Engine Expansion Plug Kits PK18B

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

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK185B

Enginetech Engine Expansion Plug Kits PK185B

Enginetech Engine Expansion Plug Kits PK185B

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

Part Number: EGN-PK185B

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK31B

Enginetech Engine Expansion Plug Kits PK31B

Enginetech Engine Expansion Plug Kits PK31B

Engine Expansion Plug Kit 00-13 CHR/DOD/JEP/Ram 4.7L

Part Number: EGN-PK31B

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK254B

Enginetech Engine Expansion Plug Kits PK254B

Enginetech Engine Expansion Plug Kits PK254B

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

Part Number: EGN-PK254B

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK54B

Enginetech Engine Expansion Plug Kits PK54B

Enginetech Engine Expansion Plug Kits PK54B

Engine Expansion Plug Kit 82-04 FRD/LIN/MER 3.8L

Part Number: EGN-PK54B

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK73B

Enginetech Engine Expansion Plug Kits PK73B

Enginetech Engine Expansion Plug Kits PK73B

Engine Expansion Plug Kit 88-94 FRD 7.3L

Part Number: EGN-PK73B

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today