The Ground Control TT 672136 five-point system uses four 3K C-jacks plus a powered tongue jack for travel-trailer leveling. Its original manufacturer parts illustration identifies the full kit, control electronics, wiring, mounting hardware and separately named components.
Original Lippert illustrated components
Each document shows the original factory drawing and part-number key. Use the numbered or lettered positions below to find the matching component.
Lippert 672136 original complete kit parts illustration (PDF, page 3)
Components and manufacturer part numbers
The callouts follow the indicated Lippert drawing. Numbers not linked to products are included to help identify the part, not to imply individual stock availability.
| Factory number | Lippert number | Component / quantity |
|---|---|---|
| 1 & 2 | 672136 | Complete five-point travel-trailer leveling kit — 1 |
| 1A | 421366 | Powered tongue jack — 1 |
| 1B | 404488 | 3K C-jacks — 4 |
| 1C | 285324 | Scissor-jack crank handle — 1 |
| 1D | 428191 | Ground Control TT identification label — 1 |
| 1E | 688837 | One Touch self-level label — 1 |
| 1F | 425585 | Four-pin pigtail harness — 1 |
| 1G | 305115 / 306298 | Right-rear / left-rear Hall Effect harnesses — 1 each |
| 1G | 307489 / 307490 | Right-front / left-front Hall Effect harnesses — 1 each |
| 1H | 426526 | Power and ground supply harness — 1 |
| 1I | 421372 | Tongue-jack harness — 1 |
| 1J | 331116 | CANbus data harness — 1 |
| 1K / 1L | 243688 / 434431 | Rear 35-ft / front 15-ft sensor harnesses — 1 each |
| 1M | 329080 | CANbus power connector harness — 1 |
| 1N | 423094 | Leveling sensors — 2 |
| 1O | 433633 | Green SE controller — 1 |
| 1P | 425306 | Auto-leveling touchpad — 1 |
| 1Q | 406345 | OneControl display panel — 1 |
| 1R | 333041 | CANbus terminating resistors — 2 |
| 1S / 1T | 434376 / 663511 | 3/8-inch flange nuts and bolts — 24 each |
| 1U / 1V | 360717 / 690759 | #10-32 keep nuts — 2; #8 screws — 8 |
| 2A | 671102 | Bolt-on spacer brackets — 4 |
| 2B | 671294 | 38-inch center tubes — 2 |
| 2C | 675725 | Leveling-sensor mounting plates — 2 |
| 2D | 241940 | #8 self-drilling square-head screws — 8 |
| 2E | 206614 | 3/8-16 × 3½-inch hex bolts — 8 |
| 2F / 2G | 119072 / 119075 | 3/8-inch flange nuts and flat washers — 8 each |
| 2H / 2I | 378272 / 117891 | 5/16-inch carriage bolts and flange nuts — 24 each |
| 2J | 671292 | Bolt-on I-beam mounting brackets — 4 |
Before ordering a replacement
Lippert Ground Control TT OneControl aftermarket manual CCD-0004303, September 22, 2021. For a specific installation, consult the latest manufacturer instructions. Use the full manual for installation, adjustments and safe service; leveling jacks are not supports for working underneath a trailer.
Product photos and available components
Explore the NewRVParts listings pictured below. An entire leveling kit, an individual jack and a replacement control panel are separate products.
Lippert 672136 — Ground Control TT five-point leveling kitView this NewRVParts product and its photographs
Lippert 404488 — Ground Control TT 3K C-jackView this NewRVParts product and its photographs
Lippert 425306 — Ground Control TT auto-level touchpadView this NewRVParts product and its photographs