4L60E 4L65E 4L70E 700R4 TRANSMISSION PINLESS FORWARD CLUTCH ACCUMULATOR PISTON BY SONNAX FITS '83+ MADE IN USA

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S74741GAK
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4L60E 
4L65E 
4L70E
700R4
'83+ 4-SPEED GM AUTOMATIC TRANSMISSION WITH 16 BOLT PAN:
FORWARD ACCUMULATOR PISTON KIT
  • PINLESS
  • SONNAX 77987-01K

s74741gak.jpg
 

 

  • FITS 4L60E, 4L65E, & 4L70E EQUIPPED CHEVY CADILLAC BUICK GMC PONTIAC:
  • BUICK RAINIER '03-'07
  • BUICK ROADMASTER '95-'96
  • CADILLAC ESCALADE '99-'065.3L 5.7L 6.0L
  • CADILLAC FLEETWOOD/BROUGHAM/LIMO '95-'96 5.7L
  • CHEVY ASTRO & GMC SAFARI '93-'05 4.3L
  • CHEVY AVALANCHE '01-'08 5.3L 8.1L (4L60E)
  • CHEVY AVALANCHE '06-'08 6.0L (4L70E)
  • CHEVY S-BLAZER & GMC S JIMMY '93-'05
  • CHEVY & GMC C/K 1500 PICKUPS '93-'97 4.3L 4.8L
  • CHEVY & GMC C/K 1500-2500 '93-'97 5.0L 5.3L 5.7L 6.0L (WITH 16 BOLT PAN)
  • CAMARO & FIREBIRD '93-'02
  • CHEVY COLRADO  '03-'12
  • CAPRICE '93-'96
  • CORVETTE '93-'05
  • CHEVY TRAILBLAZER & GMC ENVOY '99-'09
  • CHEVY EXPRESS VAN '12-'13 4.3L
  • CHEVY GRAND VITARA '06-'07 2.5L
  • CHEVY IMPALA '93-'96
  • CHEVY S10, GMC S15 & SONOMA '93-'05
  • CHEVY SILVERADO 1500 & GMC SIERRA 1500 '98-'13 4.3L 4.8L 5.3L SOME 6.0L
  • CHEVY SSR '03-'06
  • CHEVY & GMC SUBURBAN 1500 '93-'08 4.8L 5.0L 5.3L 5.7L
  • CHEVY & GMC SUBURBAN 1500 '93-'08 SOME 6.0L (WITH 16 BOLT PAN)
  • CHEVY TAHOE & GMC YUKON '95-'13 4.8L 5.3L 5.7L
  • CHEVY TRACKER '98-'04 1.6L 2.0L (WITH 16 BOLT PAN)
  • CHEVY & GMC 1500 VAN '93-'11 4.3L 4.8L 5.0L 5.3L 5.7L 6.5L (WITH 16 BOLT PAN)
  • CHEVY & GMC 2500 VAN '93-'03 (WITH 16 BOLT PAN)
  • CHEVY & GMC 3500 VAN '93-'99 4.3L
  • GMC CANYON '03-'13
  • GMC SAVANA VAN '12-'13 4.3L
  • GMC YUKON & YUKON XL '00-'11 4.8L, 5.3L, & 6.0L WITH 16 BOLT PAN
  • HUMMER H2 '02-'07 6.0L (4L65E)
  • HUMMER H3 '06-'11 3.7L 3.9L SOME 5.3L
  • PONTIAC FIREBIRD & TRANSAM '93-'02
  • OLDSMOBILE BRAVADA '93-'03
  • FITS 4L60E EQUIPPED HOLDEN:
  • ADVENTRA '04-'07
  • COMMODORE '00-'11 3.6L 3.8L 5.7L (WITH 16 BOLT PAN)
  • MONARO '00-'06
  • FITS 4L60E EQUIPPED ISUZU:
  • ASCENDER '03-'08
  • HOMBRE '97-'00
  • I SERIES (290, 370) '06-'08

 

  • 77987-01K SONNAX KIT INCLUDES:
  • 1 Pinless Accumulator Piston
  • 1 D-Ring
  • 1 Teflon® Seal
  • 2 Steel Balls
  • The Sonnax patent pending pinless design with dual seals stabilizes the piston in the bore and provides better sealing characteristics. Use of this part eliminates the need for the pins.

  • Features & Benefits:
  • Dual seals stabilize and completely seal the bore and provide a tight seal even after thousands of cycles.

    Pinless design eliminates the possibility of pin leakage and the additional length stabilizes the piston to prevent piston cocking.

    Steel balls included for plugging existing pin bore in valve body.

  • In 4L60E, 4L65E, & 4L70E units it is common for the plastic forward accumulator piston to wear or crack. This causes a fluid loss, resulting is delayed engagement, slips, burned clutches and/or band. Repeated reciprocation of the accumulator piston causes the piston pin bore to wear. Fluid loss through the piston pin bore or cracks causes forward clutch to slip. The Sonnax pinless forward accumulator piston kit 77987-01K eliminates these problems.

  • MADE IN THE USA
  • PHOTO SHOWS ACTUAL SONNAX KIT (SPRING AND OTHER O.E. PARTS SHOWN FOR REFERENCE ONLY)
  • FREE SHIPPING TO ALL 50 U.S. STATES & PUERTO RICO!
  • WE SHIP WORLD WIDE