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Black Friday Doorbuster Alternator,150a,gm Small Block Gen Iii,iv,ls Based,black Flash Sale: 75% Off [x6Se0yh8]

$42.99 $137.99 -69%

BRAND NEW HOLLEY PREMIUM ALTERNATOR, BLACK FINISH, 150 AMPS (HOLLEY PART #197-303). WITH PERFORMANCE ENGINES PUSHING REDLINES UP HIGHER AND HIGHER, ALTERNATORS ARE BEING FORCED BEYOND THEIR DESIGN. HOLLEYS PREMIUM ALTERNATORS ARE SPECIALLY DESIGNED T

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Black Friday Doorbuster Alternator,150a,gm Small Block Gen Iii,iv,ls Based,black Flash Sale: 75% Off [x6Se0yh8]

BRAND NEW HOLLEY PREMIUM ALTERNATOR, BLACK FINISH, 150 AMPS (HOLLEY PART #197-303).

WITH PERFORMANCE ENGINES PUSHING REDLINES UP HIGHER AND HIGHER, ALTERNATORS ARE BEING FORCED BEYOND THEIR DESIGN. HOLLEYS PREMIUM ALTERNATORS ARE SPECIALLY DESIGNED TO TOLERATE 30% HIGHER RPMS THAN CONVENTIONAL ALTERNATORS AND MADE IN THE USA. IF YOU DRAG RACE, AUTO-CROSS, OR JUST HOT-ROD YOUR RIDE, KNOW THIS ALTERNATOR WONT FLY APART ON YOU. INSIDE THE ATTRACTIVE HOLLEY HOUSING IS CUTTING EDGE TECHNOLOGY. EVERY COMPONENT WAS DEVELOPED TO PRODUCE CLEANER, MORE EFFICIENT OUTPUT COMPARED TO CONVENTIONAL ALTERNATORS. EFFICIENCY MEANS YOU GET MORE FROM A COMPACT PACKAGE. GM RECENTLY ADOPTED THIS TECHNOLOGY FOR THE 2014 AND LATER CORVETTES. THE ATTENTION TO COSMETIC DETAIL ON THESE UNITS IS ABOVE AND BEYOND WHAT YOU WOULD EXPECT TOO. THE ENTIRE OUTSIDE HOUSING HAS BEEN SCULPTED FOR A SMOOTH SILHOUETTE THAT HIDES THE UGLY DETAILS WE THINK OF AS ALTERNATORS. THE HOUSINGS ARE SMOOTHED TO MAKE POLISHING CLEAN (NO BUFFER CUT MARKS TRYING TO GET IN TIGHT CORNERS). EVEN THE REAR COVER IS ALUMINUM SO YOU LOSE THAT BLACK PLASTIC ON YOUR POLISHED ALTERNATOR. FOR THAT FINISHING TOUCH, BLACK PULLEY COVERS ARE AVAILABLE TO GIVE A SIMPLE BUT REFINED LOOK. THESE POWERHOUSES FIT ALL HOLLEY ACCESSORY BRACKETS, AS WELL AS 4TH GENERATION F-BODY, MOST 1998 THRU 2004 GM TRUCKS, AND MANY OTHER APPLICATIONS.

FEATURES:

  • WORKS WITH ALL HOLLEY ACCESSORY BRACKETS
  • 150 AMP OUTPUT
  • SMALLER & LIGHTER THAN THE LARGE CASE 197-301
  • SCULPTED ALL ALUMINUM HOUSINGS
  • USE WHEN SIZE AND CLEARANCE MATTER
  • MADE IN THE USA
  • BLACK AND POLISHED PULLEY COVERS ARE AVAILABLE: P/N 97-187 (BLACK) & 97-188 (POLISHED)
  • USES WEATHERPROOF PLUG/PIGTAIL P/N 197-400 (NOT INCLUDED)
  • DESIGNED AND TESTED FOR 30% HIGHER RPM THAN CONVENTIONAL ALTERNATOR

SPECS:

  • ALTERNATOR STYLE: O.E. OR 1-WIRE
  • BRAND: HOLLEY
  • ENGINE: GM SMALL BLOCK GEN III/IV (LS BASED)
  • FINISH: BLACK
  • MATERIAL: ALUMINUM
  • OUTPUT: 150 AMPS
  • PRODUCT TYPE: ALTERNATOR

YOU CAN VIEW AND DOWNLOAD THE COMPLETE ASSEMBLY INSTRUCTION BOOKLET HERE.

What Our Customers Say

January 18, 2026

Absolutely no complaints!

This is a really great and a very, very, very, very, very solid item.

- Manawydan M..

January 18, 2026

Absolutely no complaints!

A very functional and a truly, so very intelligent design.

- Ysbaddaden W..

January 18, 2026

Absolutely no complaints!

It’s a very nice tool. And has very, very great quality.

- Dwynwen W..

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