Direct answer: for upgrading an APU-equipped truck, choose subsections that improve alternator reliability, filtration, cooling, and radiators. This guide highlights five compatible products best suited for Thermo King TriPac Evo and RigMaster APU systems, helping you maintain electrical performance, engine cooling, and overall reliability in demanding conditions. Each option is explained with best-use scenarios, so fleet managers and owner-operators can pick with confidence.
| Product | Best For | Why It Stands Out |
|---|---|---|
| Tenlioshun 452947 Alternator | High-load APU users | 120A/14.5V compatibility for Thermo King Tripac Evo |
| 45-2671 Alternator 120A | OEM-replacement scenarios | Replaces multiple OE numbers; durable high-load output |
| APU Filter Kit 11-6182 / 11-9059 / 11-9342 | Routine maintenance | All filters in one kit for TriPac Evolution and related systems |
| WRCRAD Aluminum Radiator for RigMaster | RigMaster APU cooling | All-aluminum, durable, direct-fit replacement |
| Delco Remy 8600473 55SI | High-output applications | 420A at 12V with brushless design for durability |
Tenlioshun 452947 45-2669 45-2671 845-2596 Alternator 120A
Part Name: Alternator 452947 45-2669 45-2671 845-2596. Part Number: 452947 45-2669 45-2671 845-2596. Application: Compatible with Thermo King Tripac APU Evo. Best for fleet operators needing a direct replacement with reliable high-load output for Thermo King Tripac Evo systems. Limitation: exact fit depends on mounting and electrical configuration; verify compatibility with your model before ordering.
45-2671 Alternator 120A 14.5V for Thermo King Tripac APU Evo
Brand: LDCRE. This 120A alternator replaces OE numbers 452671, 45-2596, 41-9925, 845-2596, 845-2681 for a precise fit. Best for users who need a high-output unit that aligns with Thermo King Tripac APU Evo systems. Caution: ensure the mounting pattern matches your current installation.
APU Filter Kit 11-6182 11-9059 11-9342 for Thermo King TriPac Evolution
Brand: WDPART. Complete service kit includes 1x Oil Filter (11-6182), 1x Air Filter (11-9059), and 1x Fuel Filter (11-9342). Best for owners performing routine maintenance on Thermo King TriPac APU, TriPac Evolution, and major T-Series and MD-Series units. Limitation: kit contents should match the exact model year and assembly of your APU for proper filtration coverage.
WRCRAD Full Aluminum Radiator For Rigmaster APU
Brand: WRCRAD. Features a 3003 aluminum alloy core with high thermal conductivity, corrosion resistance, and direct-fit installation. Best for RigMaster APU truck cooling upgrades. Limitation: data notes emphasize universal fit for RigMaster P-110, P10-4, P10-40; verify exact model compatibility before purchase.
ELYJDZBY 102-1018 Compressor for Thermo King Tripac APU
Brand: ELYJDZBY. Product Name: 102-1018 102-1059 15-2171 Compressor. Fits Thermo King Tripac APU. Best for users needing a compatible compressor to support APU operation. Caution: verify exact part numbers match your APU model.
EGINCOOLER 3 Rows Aluminum Radiator for RigMaster APU
Brand: EGINCOOLER. Model RP5028. Core size 13-1/16″x16-7/16″; Out/Inlet Diameters 7/8″. Best for most RigMaster P-110, P10-4, and P10-40 models (2008 and newer). Limitation: verify core dimensions and inlet/outlet sizes to ensure compatibility with your cooling hoses.
Niking Auto Wireless 4 Gang Switch Panel
Brand: Niking Auto. Wireless four-gang switch panel. Best for reducing wiring clutter and providing centralized control for lighting and accessories. Caution: designed for 12-24V systems; consider your vehicle’s voltage and load requirements before installation.
Delco Remy 8600473 55SI High-Output Alternator
Brand: DELCO REMY. 55SI, 420A at 12V, brushless design. Application includes fire trucks, utility trucks, and APUs. Best for high-demand electrical systems requiring sustained output with reduced wear. Caution: verify mounting pad and space constraints; the 80mm pad size is a specific fit.
Buying Guide
- What type of APU system do you have? Confirm Thermo King TriPac Evo or RigMaster to match the correct replacement parts.
- Do you need higher electrical output or improved filtration and cooling? Choose alternators for power, filters for maintenance, and radiators for cooling upgrades accordingly.
- Is direct-fit compatibility important? Prioritize products listing OEM numbers and mounting compatibility to minimize installation issues.
- What is your maintenance plan? A complete filter kit supports routine service; consider scheduling regular replacements.
- Are you upgrading multiple systems? For a broader upgrade, consider pairing an alternator with a high-capacity radiator and a control panel to simplify operation.
FAQ
- Q: Will these parts fit all Thermo King Tripac APU Evo units?
A: Compatibility varies by model; check OE numbers and mounting patterns listed for each item. - Q: Is a higher-amp alternator always better for an APU?
A: Higher output helps under heavy loads but requires electrical system compatibility and proper wiring and fusing. - Q: Do I need a professional installer?
A: For complex electrical and cooling upgrades, professional installation is recommended to ensure safe operation. - Q: Can I mix brands for an APU upgrade?
A: Mixing parts can be compatible if they match the required specifications, but verify fit and warranty terms. - Q: How often should APU air and oil filters be replaced?
A: Follow manufacturer maintenance intervals; a complete kit streamlines routine service.