Cat Transmission Control Group - 2534019

Fits Models At A Glance:

• Caterpillar Motor Graders — 120H/120K/12H/12K Series: 120H, 120H ES, 120H NA, 120K, 120K 2, 12H, 12H ES, 12H NA, 12K
• Caterpillar Motor Graders — 135H/140H/140K/143H Series: 135H, 135H NA, 140H, 140H ES, 140H NA, 140K, 140K 2, 143H
• Caterpillar Motor Graders — 160H/160K/163H/24H Series: 160H, 160H ES, 160H NA, 160K, 163H, 163H NA, 24H

Key Notes:

• Part Numbers: 2534019, 1803531, 1611343, 8C5337, 4529831
• Weight: 7.19 lbs (3.26 kg)
• Type: Transmission controller (ECM/module)
• Compatible Engines: 3126B, 3176C, 3306, 3306B, 3412E, C-9, C7
• Application: Transmission controller — manages transmission shift logic, gear selection sequencing, and transmission system operation on applicable Caterpillar H-series and K-series motor graders
• Note: Five part numbers reference this controller across multiple production runs and supersession chains — confirm your machine's serial number prefix and engine configuration before ordering. Verify controller software compatibility with your machine's existing ECM system before installation
• Condition: Aftermarket replacement part

Common Use Case or Symptoms: Use when the machine is displaying transmission fault codes, gears are not shifting correctly or shifting erratically, the transmission is stuck in a single gear, or the controller is confirmed failed through diagnostic testing — a failed transmission controller disrupts shift logic and gear sequencing, rendering the machine unable to operate normally on applicable Caterpillar motor graders.

Why Choose Broken Tractor:

• ✅ Five Part Number Coverage: 2534019 interchanges with 1803531, 1611343, 8C5337, and 4529831 — covers the full supersession chain for this controller across applicable Caterpillar H-series and K-series motor grader production runs
• ✅ Broad H and K Series Motor Grader Coverage: One controller fits Caterpillar motor graders from the 120H through 24H series across 3306, 3176C, 3412E, C-9, and C7 engine platforms — confirm serial number prefix and engine before ordering
• ✅ Fast Shipping from a U.S.-Based Team: In-stock and ready to ship from our U.S. warehouses