The Sunair CO-6300CA is a CP16 direct-mount A/C compressor built for heavy-duty HVAC performance in TM/CP-style applications. It features an 8-groove PV8 serpentine clutch with a 119 mm (4.69 in) pulley and a 12V coil with a 1-wire bullet connector. Compatible with R134a and PAG 46 oil, this unit is an excellent replacement for Seltec/Zexel TM/CP16 and select Carrier Transicold compressor references.

• CP16 compressor architecture supports robust cooling capacity for heavy-duty duty cycles.
• Direct-mount pad design streamlines installation in TM/CP-style brackets and manifolds.
• PV8 8-groove serpentine clutch provides reliable belt engagement under load.
• 119 mm clutch pulley matches common OE drive ratios for stable cooling at idle and cruise.
• 12V electromagnetic clutch with 1-wire bullet terminal simplifies electrical hookup.
• Compatible with R134a refrigerant and PAG 46 oil for most late-model HD systems.
• Industry-standard dimensions and ports for interchange with common TM/CP16 units.

Key specifications

• Compressor type: CP16 (TM/CP style)
• Mount/ports: Direct-mount pad (PT-4002 pattern)
• Pulley and belt: PV8 serpentine, 119 mm (4.69 in) clutch
• Voltage: 12V; Electrical terminal: 1-wire bullet
• Refrigerant/Oil: R134a / PAG 46
• Country of origin: Malaysia
• VMRS: 001-001-002 (A/C Compressor)
• Sunair P/N: CO-6300CA

Cross references

Direct or functional interchange with select references (verify all dimensions and connections):

• 1-800-Radiator: C2181
• ACC: 08814263A
• Air Source/MEI: 5806, 5806HD, 5923A, MEI5806, MEI5923A
• Carrier Transicold: 180009313, C199662
• COOL STAR: 3401410
• FJC: 216308
• Four Seasons: 68635
• Global Parts Distributors: 6512723, 7512723
• Kysor: 1403167
• LKQ: ACP012959OES
• Omega Environmental: 2046282, 2046282HP
• Road Choice: RCACC7115
• Seltec: 43556282, 48846282
• Sunair Products: 05000824, 2521687, 3401410, PTAC5923A, QP161687, QP161725, Y61Q160100
• UAC: CO46282V
• Valeo: 10056282, 10056402, 10356282, 10356402
• Zexel: F699357Q

Installation best practices

1. Confirm pulley type and size (PV8, 119 mm) and mount pattern (PT-4002 pad) match your application.
2. Balance oil to system capacity with PAG 46; drain and adjust compressor oil as required.
3. Replace the receiver/drier (or accumulator) and expansion device during compressor service.
4. Flush lines/heat exchangers, evacuate to deep vacuum, and verify vacuum hold.
5. Charge with R134a to OE specification and check for leaks and clutch engagement.
6. Verify belt alignment and torque fasteners to manufacturer specifications.

Note: Some applications may require transferring the head/manifold, spacers, or fittings from the original unit.