Toyota Tundra Transmission Guide: A750F, AB60F, A760 by Year

Toyota Tundra owners have several transmission options depending on year and engine. Heres the year-by-year breakdown including the popular Aisin-built units.

2000-2006 Tundra (1st Gen):

A340 / A343 (3.4L V6 / 4.7L V8):

  • 4-speed automatic
  • Aisin-built
  • ~340 ft-lb stock
  • Bulletproof reputation

    • 2007-2009 Tundra (2nd Gen Early):

    A750E (V6) / A750F (V8 4WD):

  • 5-speed automatic
  • Aisin-built
  • Behind 4.0L V6 / 4.7L V8
  • ~400 ft-lb stock

    • 2010-2017 Tundra (2nd Gen Mid):

    AB60F (5.7L V8):

  • 6-speed automatic
  • Aisin-built HD
  • ~450 ft-lb stock
  • Premium HD design

    • A760E (4.0L V6):

  • 6-speed automatic
  • Aisin-built
  • ~330 ft-lb stock

    • 2018-2021 Tundra (2nd Gen Late):

    AB60F (5.7L V8):

  • Same 6-speed as 2010-2017
  • Minor calibration updates

    • 2022+ Tundra (3rd Gen):

    10-speed automatic:

  • Aisin-built
  • Behind 3.5L Twin Turbo V6 hybrid (i-Force MAX)
  • ~580+ ft-lb stock

    • Why Toyota/Aisin trans are reliable

    Design quality:

  • Aisin is Japanese trans specialist
  • Tighter tolerances
  • Better friction materials
  • Conservative shift programming

    • Service-friendly design:

  • Easy drain plug access
  • Dipstick for fluid check
  • Reasonable filter location

    • Common Tundra trans failures

    A340/A343 (early):

  • Very rare - bulletproof unit
  • OD piston wear at 300k+ miles
  • Pump bushing at 250k+ miles

    • A750E/F:

  • Rare failures under 200k miles
  • 5th gear band wear when tow-heavy
  • Solenoid wear at 200k+ miles

    • AB60F:

  • Rare under 150k miles
  • Lockup converter wear with heavy tow
  • Solenoid pack at 200k+ miles

    • A760E (V6):

  • Smaller capacity = more wear in heavy-use
  • 3rd gear band at 150k+ miles

    • What kills Toyota trans (rare but possible)

    Wrong fluid:

  • Toyota WS only (NOT Dexron VI)
  • Wrong fluid causes premature wear

    • Towing without aux cooler:

  • Sustained heavy load fries clutches
  • Tundra max tow is real but stresses trans

    • Skipping fluid service:

  • Toyota "lifetime" claim is wrong
  • Real interval: 60k miles
  • Tow: 30k miles

    • Fluid spec - CRITICAL

    All modern Toyota trans:

  • Toyota WS ONLY (World Standard)
  • NOT Dexron VI, NOT Mercon
  • 9-13 quarts depending on trans
  • $15-$25/qt
  • $150-$350 full service

    • Service intervals

    Stock daily use:

  • 60,000 miles (despite "lifetime" claim)

    • Tow use:

  • 30,000 miles
  • Aux cooler recommended

    • Heavy off-road:

  • 30-40k miles
  • Aux cooler mandatory

    • Tuning limits (Toyota engines)

    4.7L V8 with bolt-ons:

  • Stock trans OK to ~330 HP

    • 5.7L V8 with bolt-ons + tune:

  • Stock AB60F OK to ~450 HP
  • Above that: limited HD options

    • 2022 i-Force MAX:

  • Hybrid system limits aftermarket
  • Stock trans handles factory power well

    • Rebuild cost

    A340/A343:

  • Stock: $1,500-$2,500
  • Plenty of aftermarket parts

    • A750E/F:

  • Stock: $2,200-$3,500
  • Some aftermarket parts

    • AB60F:

  • Stock: $3,000-$4,500
  • Limited aftermarket (Aisin parts pricey)

    • A760E (V6):

  • Stock: $2,500-$3,800

    • 2022+ 10-speed:

  • Too new for typical rebuild prices
  • Limited shop knowledge

    • HD upgrades available

    For AB60F (5.7L Tundra):

  • HD friction packs (Sonnax)
  • HD aux cooler
  • HD valve body kit (limited)

    • For tow use:

  • Aux cooler mandatory ($150-$300)
  • Trans temp gauge install
  • Service every 25-30k miles

    • Pre-purchase used Tundra check

    Drive test:

  • All gear engagement smooth (Toyota standard)
  • TCC apply quality
  • 5-6 / 6-7 shifts on AB60F
  • Cold-start behavior

    • Red flags:

  • Burnt fluid smell (very rare on Toyotas - serious red flag)
  • Hard shifts (uncommon on Toyota)
  • Wrong fluid in service records
  • Tow vehicle with no aux cooler at 150k+

    • Toyota vs Big Three trans reliability

    Toyota strengths:

  • Lowest failure rate in the industry
  • Conservative shift logic
  • Quality components

    • Toyota weaknesses:

  • Less aftermarket HD support
  • Aisin parts expensive when needed
  • Fewer rebuild shops familiar

    • Compared to Ford F-150 6R80 / Chevy Silverado 6L80

    Tundra AB60F:

  • More reliable stock
  • Less HD upgrade options if you tune

    • Big Three trans:

  • Less reliable stock
  • Massive HD aftermarket for tuning

    • Bottom line

    For stock daily/tow:

  • Tundra is the winner for reliability

    • For tuning / performance:

  • Big Three trans have more options

    • Need Tundra transmission rebuild parts (A340, A750, AB60F)? Visit our main catalog. Aisin-compatible master rebuild kits, HD upgrades. Free shipping over $70.

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