Davis Unified Ignition (DUI) Distributors & More

Add Davis Unified Ignition products to your ride, and get the horsepower boost you’re looking for. Our Davis Unified Ignition products include distributors to...

Add Davis Unified Ignition products to your ride, and get the horsepower boost you’re looking for. Our Davis Unified Ignition products include distributors to properly deliver high voltage from the coil to the correct cylinder, ignition coils to fire your spark plugs, batteries to power your ride, alternators to charge your battery, and much more! Davis Unified Ignition is a Performance Distributors brand and was the first to launch a performance HEI distributor. The goal of DUI is to provide your engine with more power, torque, and efficiency. Give one of these revolutionary products a try and feel the difference!

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Results 1 - 25 of 349

Davis Unified Ignition GM Computer-Controlled Distributors 12620BK

Distributor, EST, Electronic Advance, Black Cap, Chevy, 4.4, 5.0, 5.7, 7.4L, V-8, Each

Part Number: DUI-12620BK

4.54 out of 5 stars ( 46 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Davis Unified Ignition GM Street/Strip D.U.I. Distributors 12720BK

Distributor, HEI, Mechanical/Vacuum Advance, Black Cap, Chevy, Big Block, Small Block, Each

Part Number: DUI-12720BK

4.41 out of 5 stars ( 46 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Davis Unified Ignition Marine Performance D.U.I. Distributors M12720BK

Distributor, HEI, Mechanical Advance, Black Cap, Chevy, Big/Small Block, Each

Part Number: DUI-M12720BK

4.92 out of 5 stars ( 12 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Davis Unified Ignition Dyna-Modules 000222

Ignition Module, Replacement, 4-Pin, GM, Car, Each

Part Number: DUI-000222

4.77 out of 5 stars ( 94 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Davis Unified Ignition GM Street/Strip D.U.I. Distributors 12720RD

Distributor, HEI, Mechanical/Vacuum Advance, Red Cap, Chevy, Big/Small Block, Each

Part Number: DUI-12720RD

4.7 out of 5 stars ( 30 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Davis Unified Ignition Toyota Street/Strip D.U.I. Distributors for 1968-1987 LAND CRUISER - 80820BK

Distributor, HEI, Vacuum, Mechanical Advance, Black Cap, Toyota 6-Cylinder, Each

Part Number: DUI-80820BK

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Davis Unified Ignition AMC Street/Strip D.U.I. Distributors 40620BK

Distributor, HEI, Mechanical/Vacuum Advance, Black Cap, Each

Part Number: DUI-40620BK

4.44 out of 5 stars ( 9 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Davis Unified Ignition Ford Street/Strip D.U.I. Distributors 39820BL

Distributor, HEI, Vacuum, Mechanical Advance, Blue Cap, Ford 6-Cylinder, 3.9/4.9L, Each

Part Number: DUI-39820BL

4.57 out of 5 stars ( 7 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Davis Unified Ignition AMC Street/Strip D.U.I. Distributors 40820BL

Distributor, HEI, Vacuum, Mechanical Advance, Blue Cap, Each

Part Number: DUI-40820BL

5.0 out of 5 stars ( 11 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Davis Unified Ignition Ford Street/Strip D.U.I. Distributors 35820BL

Distributor, HEI, Vacuum, Mechanical Advance, Blue Cap, Ford, Small Block, 351W, Each

Part Number: DUI-35820BL

4.91 out of 5 stars ( 11 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Davis Unified Ignition GM Street/Strip D.U.I. Distributors 42720BK

Distributor, HEI, Vacuum, Mechanical Advance, Black Cap, Oldsmobile V8, Each

Part Number: DUI-42720BK

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Davis Unified Ignition Ford Street/Strip D.U.I. Distributors 33820BL

Distributor, HEI, Vacuum, Mechanical Advance, Blue Cap, Ford, Big Block FE, Each

Part Number: DUI-33820BL

4.08 out of 5 stars ( 12 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Davis Unified Ignition AMC Street/Strip D.U.I. Distributors 40820BK

Distributor, HEI, Vacuum, Vacuum, Mechanical Advance, Black Cap, Each

Part Number: DUI-40820BK

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Davis Unified Ignition Ford Street/Strip D.U.I. Distributors 32820BL

Distributor, HEI, Vacuum, Mechanical Advance, Blue Cap, Ford, 351C, 351M, 400, 429, 460, Each

Part Number: DUI-32820BL

4.62 out of 5 stars ( 13 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Davis Unified Ignition AMC Street/Strip D.U.I. Distributors 40420BK

Distributor, HEI, Mechanical Advance, Black Cap, Each

Part Number: DUI-40420BK

4.29 out of 5 stars ( 7 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Davis Unified Ignition GM Street/Strip D.U.I. Distributors 51720BK

Distributor, HEI, Vacuum, Mechanical Advance, Black Cap, 0.491 in. Diameter Shaft, Pontiac V8, Each

Part Number: DUI-51720BK

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Davis Unified Ignition Dyna-Batt Batteries 5575B

Battery, Dry Cell, 12 V, Starting, Top Post, Each

Part Number: DUI-5575B

4.32 out of 5 stars ( 37 )

Cannot be shipped Internationally

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Cannot be shipped Internationally

Davis Unified Ignition GM Street/Strip D.U.I. Distributors 51720BL

Distributor, HEI, Vacuum, Mechanical Advance, Blue Cap, Pontiac V8, Each

Part Number: DUI-51720BL

4.7 out of 5 stars ( 10 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Davis Unified Ignition Street/Strip Coil Kits 240001BK

HEI Distributor Upgrade Kit, 50,000 V Coil, Cap, Rotor, GM V8, Black, Kit

Part Number: DUI-240001BK

4.56 out of 5 stars ( 52 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Davis Unified Ignition International D.U.I. Distributors 90900RD

Distributor, HEI, Vacuum, Mechanical Advance, Red Cap, International V8, Each

Part Number: DUI-90900RD

4.57 out of 5 stars ( 14 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Davis Unified Ignition GM Racing D.U.I. Distributors S127212

Distributor, HEI, Stealth, Mechanical Advance, Black Cap, Chevy, Big, Small Block, V8, Each

Part Number: DUI-S127212

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Davis Unified Ignition AMC Street/Strip D.U.I. Distributors 40620RD

Distributor, HEI, Mechanical/Vacuum Advance, Red Cap, Each

Part Number: DUI-40620RD

4.64 out of 5 stars ( 14 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Davis Unified Ignition Ford Street/Strip D.U.I. Distributors 39820BK

Distributor, HEI, Vacuum, Mechanical Advance, Black Cap, Ford 6-Cylinder, 3.9/4.9L, Each

Part Number: DUI-39820BK

4.29 out of 5 stars ( 7 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Davis Unified Ignition AMC Street/Strip D.U.I. Distributors 40820RD

Distributor, HEI, Vacuum, Mechanical Advance, Red Cap, Each

Part Number: DUI-40820RD

4.89 out of 5 stars ( 9 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Davis Unified Ignition Marine Performance D.U.I. Distributors M12720BL

Distributor, HEI, Mechanical Advance, Blue Cap, Chevy, Big/Small Block, Each

Part Number: DUI-M12720BL

4.71 out of 5 stars ( 21 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

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