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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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: Today

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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: Today

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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: Today

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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: Today

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Davis Unified Ignition Marine Performance D.U.I. Distributors M12720RD

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

Part Number: DUI-M12720RD

4.88 out of 5 stars ( 17 )

Estimated Ship Date: Today

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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: Today

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Davis Unified Ignition Marine Performance D.U.I. Distributors M35820BL

Distributor, HEI, Mechanical Advance, Blue Cap, Ford, Small Block Windsor, Each

Part Number: DUI-M35820BL

4.6 out of 5 stars ( 10 )

Estimated Ship Date: Today

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

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

Part Number: DUI-12720CL

4.88 out of 5 stars ( 17 )

Estimated Ship Date: Today

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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: Today

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Davis Unified Ignition Distributor Shim Kits 26150

Distributor housing Shims, Includes .030 in./.060 in./.100 in. shims, for GM, Big/Small Block, Set of 3

Part Number: DUI-26150

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Davis Unified Ignition Marine Performance D.U.I. Distributors M35820RD

Distributor, HEI, Mechanical Advance, Red Cap, Ford, Small Block Windsor, Each

Part Number: DUI-M35820RD

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Davis Unified Ignition Cap and Rotor Kits 34100BL

Cap & Rotor, Blue, Male/HEI, Brass Terminals, Clamp-Down, Ford, Big/Small Block, V8, Kit

Part Number: DUI-34100BL

4.43 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Davis Unified Ignition Melonized Distributor Gears 1045

Distributor Gear, Melonized, 0.491 in. Diameter Shaft, for GM Factory Roller Camshafts, Chevy, Small Block, Big Block, V6, Each

Part Number: DUI-1045

3.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Davis Unified Ignition Cap and Rotor Kits 32100BL

Cap & Rotor, Blue, Male/HEI, Brass Terminals, Clamp-Down, Ford, Duraspark, Big/Small Block, V8, Kit

Part Number: DUI-32100BL

4.08 out of 5 stars ( 13 )

Estimated Ship Date: Today

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Davis Unified Ignition Vortec D.U.I. Distributors 12625BL

Distributor, Aluminum, Magnetic Pickup, Electronic Advance, Chevy, Small Block, 5.0, 5.7L, Vortec, Each

Part Number: DUI-12625BL

4.3 out of 5 stars ( 10 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Davis Unified Ignition GM Computer-Controlled Distributors 12611BK

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

Part Number: DUI-12611BK

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Davis Unified Ignition Ford Street/Strip D.U.I. Distributors 38820BL

Distributor, HEI, Mechanical/Vacuum Advance, Blue Cap, Ford, Small Block, 5.0L, Each

Part Number: DUI-38820BL

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Davis Unified Ignition Ford Street/Strip D.U.I. Distributors 31820BK

Distributor, HEI, Vacuum, Mechanical Advance, Black Cap, Ford, Small Block, Each

Part Number: DUI-31820BK

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Davis Unified Ignition GM Dual-Power Distributors 14000-2

Distributor, Dual-Power, Vacuum Advance, Inferno 2 Coil, Black Cap, Chevy, Big, Small Block, V8, Each

Part Number: DUI-14000-2

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Davis Unified Ignition Cap and Rotor Kits 32100RD

Cap & Rotor, Red, Male/HEI, Brass Terminals, Clamp-Down, Ford, Duraspark, Big/Small Block, V8, Kit

Part Number: DUI-32100RD

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Davis Unified Ignition Cap and Rotor Kits 35200RD

Cap & Rotor, Red, Male/HEI, Brass Terminals, Screw-Down, Mopar, Small Block Magnum, Kit

Part Number: DUI-35200RD

4.81 out of 5 stars ( 16 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Davis Unified Ignition Cap and Rotor Kits 34100RD

Cap & Rotor, Red, Male/HEI, Brass Terminals, Clamp-Down, Ford, Big/Small Block, V8, Kit

Part Number: DUI-34100RD

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jul 27, 2026 if ordered today

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Estimated Ship Date: Jul 27, 2026 if ordered today

Davis Unified Ignition Ford Street/Strip D.U.I. Distributors 31820BL

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

Part Number: DUI-31820BL

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Davis Unified Ignition Bronze Distributor Gears 412

Distributor Gear, Aluminum, Bronze, Race, .491 in. Diameter Shaft, Chevy, Small Block, Big Block, V6, Each

Part Number: DUI-412

Not Yet Reviewed

Estimated Ship Date: Today

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Davis Unified Ignition GM Computer-Controlled Distributors 12600BK

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

Part Number: DUI-12600BK

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

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