348-3401 | Genuine Cat® Combustion Head 24 Volts

Wheel Tractor-Scraper: 627K, 631K, 637K, 657, 623K, 621
KLoad Haul Dump: R2900
Site Prep Tractor: 2864C, 586C
Material Handler: MH3295
Load, Dump: R1700K
Motor Grader: 18M3, 404F-22, 14M3, 12M 3, 12M 2, 16, 14, 18, 140M 2, 16M3, 160M 2
Track-Type Tractor: D6T LGP, D8T, D9T, D6T XW, D6T XL, D7E
Rotary Drill: MD6200
Pipelayer: PL83, PL87
Excavator: 336E LN, 352F, 336E LH, 349, 349F LXE, 336E, 352, 568 FM LL, 374F L, 390F, 374F, 349E L, 336E LNH, 349E L VG, 352F XE VG, 349F L, 352F-VG, 568 FM, 390F L, 336E L, 349E, 336E H, 349F, 352 UHD
Mobile Hyd Power Unit: 336E HVG, 349E L HVG, 352FMHPU, 390F
Petroleum Package: CX31-C18I, CX31-C9I, CX35-C18I, CX31-C13I
Wheel Tractor: 623H, 651E, 657E, 621K OEM, 621H, 627H, 631K
Generator Set: XQ425, C13, XQ375, C18, XQ350
Rotary Mixer: RM500B
Hex Based SPL Solution: 352F OEM
Reclaimer Mixer: RM500B
Petroleum Engine: C15, C18
Soil Compactor: 825K
Wheel Dozer: 834K, 824
KLandfill Compactor: 836K, 826K
Wheel Loader: 972K, 966K XE, 986K, 972M XE, 966M XE, 988K XE, 988K, 980K, 980M, 966K, 982M
Gen Set Engine: POWER SYS
Industrial Engine: C18, C15, C9.3
Wheel Scraper: 637K, 657E
Quarry Truck: 770G
Truck: 770G, 770G

1. Mix fuel and air properly

The combustion head ensures the correct ratio of fuel and air, which is essential for clean and efficient burning.

2. Direct fuel into the combustion area

It guides the fuel (often as a spray or mist) into the right position for ignition.

3. Control the flame or combustion process

It shapes and stabilizes the flame so it burns evenly and doesn’t go out or burn too aggressively.

4. Improve efficiency

By controlling combustion, it helps get more energy from less fuel.

5. Reduce emissions

Proper combustion lowers harmful gases, helping meet standards set by organizations like the Environmental Protection Agency.

6. Protect the system

It prevents problems like incomplete combustion, overheating, or damage to engine/burner components.

1. Hard starting or no start

• Engine or burner struggles to ignite
• May require multiple attempts to start

2. Unstable or irregular combustion

• Rough engine operation
• Flame may flicker, surge, or go out (in burners/boilers)

3. Loss of power or poor performance

• Engine feels weak or less responsive
• Reduced efficiency in machinery (including equipment from Kubota Corporation)

4. Increased fuel consumption

• More fuel is used because combustion is not efficient

5. Excess smoke from exhaust

• Black smoke → too much fuel / poor mixing
• White smoke → unburned fuel
• Indicates incomplete combustion

6. Unusual noises

• Knocking, popping, or rumbling sounds
• Caused by uneven or improper combustion

7. Overheating

• Poor combustion can create excess heat in certain areas
• Can damage nearby components over time

8. Carbon buildup or deposits

• Soot or carbon accumulates around the combustion area
• Reduces efficiency and worsens performance

9. Strong fuel smell

• Unburned fuel odor due to incomplete combustion