20R8575 Genuine Caterpillar Combustion Head
Description
Description: Combustion Head (No Core Charge)
Condition: New
Brand: Caterpillar
Part Number: 4333677
Fitment: Wheel Tractor-Scraper: 627K, 631K, 637K, 657, 623K, 621K
Load Haul Dump: R2900
Site Prep Tractor: 2864C, 586C
Material Handler: MH3295
Load, Haul, 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, 349E, 336E, 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, 824K
Landfill 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, C13, C15, C9.3
Wheel Scraper: 637K, 657E
Quarry Truck: 770G
Truck: 770G, 770G OEM
Shipping and Refund
At Truck To Trailer Parts, timely and reliable delivery is essential to your business. Most orders ship from our North Carolina warehouse, and in-stock parts ordered by 7:30 PM ET Monday–Friday typically ship the same business day.
Processing & Dispatch
Estimated shipping times below are transit times and don't include processing. In-stock parts ordered by 7:30 PM ET Mon–Fri usually leave the same business day; items that need extra prep ship within 24–48 hours. We dispatch Monday through Saturday, excluding major U.S. holidays. Need an exact estimate? Contact us — and note that address changes after dispatch may carry carrier fees, payable by the customer.
Shipping Methods & Transit Times
| Method | Transit time | Notes |
|---|---|---|
| Small Package Saver | 3–7 business days | Ideal for items under 10 lbs; most FREE SHIPPING items |
| Ground | 1–6 business days | Typically UPS, occasionally FedEx |
| Second Day Air | 2–3 business days | Contact sales to arrange |
| Next Day Air | 1–2 business days | Order by 7:30 PM ET Mon–Fri for same-day dispatch |
| Canada | 1–6 business days | Varies with customs clearance |
| Large Package Rate | 3–5 business days | Residential delivery of larger items |
| Will Call – Pickup | No shipping charge | Pick up at our North Carolina warehouse by request |
Free Shipping
We offer Free Shipping on eligible items within the contiguous 48 United States. Outside this region, we'll provide an accurate quote on request. Some oversized or freight items may not qualify unless specifically noted.
Freight & Oversize Shipments
Oversized shipments travel via Freight/LTL, designed for commercially zoned properties — deliveries to non-commercial addresses may carry additional charges. When receiving freight, inspect the package for damage and note exceptions on the delivery receipt before signing. Extra services like a lift gate incur carrier fees payable by the customer.
Canada & International
For Canadian shipments, customs duties, taxes and brokerage fees are the customer's responsibility — please pay promptly to avoid delays. We ship internationally too: if your location isn't supported at checkout, contact us for a custom quote. International customers are responsible for duties, taxes and customs charges.
Questions About Shipping?
+1 (877) 290-1637 (Monday – Friday, 8:00 AM – 10:30 PM ET)
support@trucktotrailerparts.com
2230 Smokey Park Hwy, Suite 114, Candler, NC 28715










