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B-Stock, Display Units & More

Alternators

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24 Volt Alternators

Flat-Rate Rebuild Service

Our all new in-house program for customers who want their original unit restored to specifications using new internal components.

Flat-rate price: $249
60-day limited warranty on internal components
All internal parts replaced (bearings, brushes, rectifier, regulator, etc.)
Pulley replaced only if necessary
Original housing retained – no cosmetic work or refinishing included

Mechman Rebuild Service

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New Products

300 amp racing alternator - BLACK *** BSTOCK *** IS-AMP-7127320B-BSTOCK mechman-bstock

300 amp racing alternator - BLACK * BSTOCK *

Was: $519.00

Now: $415.20

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320 Amp 6 Phase 88-95 GM Truck High Output Alternator Black Finish *** BSTOCK *** IS-8165320B-BSTOCK mechman-bstock

320 Amp 6 Phase 88-95 GM Truck High Output Alternator Black Finish * BSTOCK *

Was: $524.00

Now: $419.20

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170 amp High Output Marine alternator to replace 20827 11SI ***BSTOCK *** IS-M20827170-BSTOCK mechman-bstock

170 amp High Output Marine alternator to replace 20827 11SI BSTOCK

Was: $519.00

Now: $467.10

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Triple Bracket late 99-13 GM Trucks w/4.8L, 5.3L, 6.0L & 6.2 ***BSTOCK *** IS-D300-BSTOCK mechman-bstock

Triple Bracket late 99-13 GM Trucks w/4.8L, 5.3L, 6.0L & 6.2 BSTOCK

Was: $689.00

Now: $620.10

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S Series 320 Amp Alternator with 6.15" Bolt Pattern - POLISHED w/ March Pulley ***BSTOCK *** IS-BP572320P-M175-BSTOCK mechman-bstock

S Series 320 Amp Alternator with 6.15" Bolt Pattern - POLISHED w/ March Pulley BSTOCK

Was: $699.00

Now: $629.10

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370-amp V-mount alternator for SOHC Ford Modular Engines ***BSTOCK *** IS-B8252370B-BSTOCK mechman-bstock

370-amp V-mount alternator for SOHC Ford Modular Engines BSTOCK

Was: $699.00

Now: $629.10

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S Series 6 Phase High Output 320 Amp Alternator with 6.61" - Chrome w/March 1.75" Pulley and Fan ***BSTOCK *** IS-B7294320C-M175-BSTOCK mechman-bstock

S Series 6 Phase High Output 320 Amp Alternator with 6.61" - Chrome w/March 1.75" Pulley and Fan BSTOCK

Was: $799.00

Now: $719.10

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370-amp Billet Elite Series Large Case alternator for early 5.9L Cummins ***BSTOCK *** IS-B13302370B-BSTOCK mechman-bstock

370-amp Billet Elite Series Large Case alternator for early 5.9L Cummins BSTOCK

Was: $629.00

Now: $566.10

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Instructions | See All

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ChargeCommand IQ Installation Instructions
Download by clicking the PDF icon below. Installation Instruction Manual File: INSTR-CCIQ-A.pdf

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calendar_today13th Oct 2026
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2005–2014 Ford Modular V8 Dual Alternator Bracket Kit Installation Instructions
Download by clicking the PDF icon below. Installation Instruction Manual File: INSTR-FMV8DB.pdf
calendar_today7th Oct 2026
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Ford Big Block RES Engine Assembly Instruction Manual
Download by clicking the PDF icon below. Engine Assembly Instruction Manual File: INSTR-BBF-A.pdf
calendar_today1st Dec 2025
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B11001170 Installation Instructions
Download by clicking the PDF icon below. Assembly Instruction Manual File: INSTR-MERCURY_B11001.pdf
calendar_today19th Sep 2025
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Ford V-Mount Alternator Installation Instructions
Download by clicking the PDF icon below. Assembly Instruction Manual File: INSTR-11434_2-19-24.pdf

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calendar_today26th Aug 2025
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MM-VC4 Instructions
Download by clicking the PDF icon below. Assembly Instruction Manual File: INSTR-MM-VC4.pdf

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calendar_today26th Aug 2025
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Warnings All
Download by clicking the PDF icon below. Assembly Instruction Manual File: INSTR-WARNINGS-ALL.pdf

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calendar_today25th Aug 2025
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48-Volt Warning
Download by clicking the PDF icon below. Assembly Instruction Manual File: INSTR-48V-WARN_3-28-2025.

person_outline Mechman
calendar_today25th Aug 2025