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Dayco
Small I.D. Heater HoseDayco 87633 HVAC Heater Hose
| Brand | Dayco 87633 |
|---|---|
| Position | Heater To Valve |
| Color | Black |
| End 1 Inside Diameter | 5/8 |
| End 2 Inside Diameter | 3/4 |
| Hose Type | Dual I.D. Hose |
| Material | EPDM |
| SAE Specification | SAE J20R3 Class D-1, SAE J1684 Type EC |
| Trunk Height | 10 |
| Product line | Small I.D. Heater Hose |
| Fits | Ford, Mercury, Chevrolet, Acura, Honda, Mazda, Chrysler, Dodge, Nissan, and Plymouth · 93 vehicles |
Dual I.D. hose. Provides two inside diameters for flexible HVAC hose routing.
EPDM construction. Resists heat and coolant exposure in demanding service.
SAE J20R3 Class D-1. Built to meet recognized heater hose performance standards.
Cross-references ACDelco 16042M, CARQUEST 18748 and Chrysler 3849202 for the same application. See all 12.
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Dayco Small I.D. Heater Hose 87633
Dayco 87633 is a Small I.D. Heater Hose built for heater circuit service where a dual inside diameter is required. Made from EPDM and finished in black, it is specified for applications that need a 5/8 in. end on one side and a 3/4 in. end on the other.
Use this Dayco heater hose for direct replacement service on select Ford Explorer, Honda Civic, and Chevrolet Impala applications, along with other listed vehicles. The 87633 part number is also referenced by several OE and aftermarket numbers for the same application.
Key Features
- EPDM construction for heater hose service
- Dual I.D. hose design with 5/8 in. and 3/4 in. ends
- Black finish for a factory-style appearance
- Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
- Small I.D. heater hose design for select HVAC routing
- Cross-reference example: Gates 18748
Product Details
Dayco’s Small I.D. Heater Hose line focuses on replacement hoses for heater and HVAC plumbing where the hose diameter changes between connection points. Part number 87633 uses EPDM rubber for heat and coolant exposure in heater circuits, and its dual I.D. layout supports applications that transition from a 5/8 in. connection to a 3/4 in. connection. This makes it a practical replacement for vehicles such as the 2006-2008 Ford Explorer heater to valve routing, the 1996-2000 Honda Civic heater outlet, and the 2004-2005 Chevrolet Impala lower heater pipe connection.
Fits 2006-2008 Ford Explorer, Heater To Valve; Fits 2008 Ford Explorer Sport Trac, Pipe To Pipe (Inlet); Fits 2006-2007 Mercury Mountaineer, Heater To Valve; Fits 2004-2005 Chevrolet Impala, Heater To Pipe (Lower); Fits 1996-2000 Honda Civic, Heater Outlet.
What It Helps Address
- Cracked or hardened heater hose material
- Coolant seepage at a worn hose connection
- Incorrect hose diameter at a transition point
- Restricted heater flow caused by deteriorated hose walls
- Service replacement for aging HVAC heater plumbing
Installation Notes and Tips
Verify both end inside diameters before installation: 5/8 in. on one end and 3/4 in. on the other. Match the hose routing and position exactly to the vehicle listing, including heater to valve, heater to pipe, heater outlet, or pipe to pipe applications. This hose does not include a heat shield or protective sleeve, so inspect nearby components for abrasion or heat exposure before routing.
For fitment-specific service, confirm the vehicle year, make, model, and heater circuit position before ordering. The 87633 hose is listed for multiple platforms, including Ford Explorer, Mercury Mountaineer, and Honda Civic applications.
Quality Assurance
Dayco heater hoses are built to meet SAE J20R3 Class D-1 and SAE J1684 Type EC specifications, supporting standardized heater hose performance requirements for replacement service.
This part fits 93 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Submodel | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2008 | Ford | Explorer | — | 4.0L | V6 | — | Heater To Valve | w/o Oil Cooler, w/o Aux. Heater; Small I.D. Heater Hose |
| 2008 | Ford | Explorer Sport Trac | — | 4.0L | V6 | — | Pipe To Pipe (Inlet) | Small I.D. Heater Hose |
| 2007 | Ford | Explorer | — | 4.0L | V6 | — | Heater To Valve | w/o Oil Cooler, w/o Aux. Heater; Small I.D. Heater Hose |
| 2007 | Mercury | Mountaineer | — | 4.0L | V6 | — | Heater To Valve | w/o Oil Cooler, w/o Aux. Heater; Small I.D. Heater Hose |
| 2006 | Ford | Explorer | — | 4.0L | V6 | — | Heater To Valve | w/o Oil Cooler, w/o Aux. Heater; Small I.D. Heater Hose |
| 2006 | Mercury | Mountaineer | — | 4.0L | V6 | — | Heater To Valve | w/o Oil Cooler, w/o Aux. Heater; Small I.D. Heater Hose |
| 2005 | Chevrolet | Impala | — | 3.4L | V6 | — | Heater To Pipe (Lower) | Small I.D. Heater Hose |
| 2005 | Chevrolet | Monte Carlo | — | 3.4L | V6 | — | Heater To Pipe (Lower) | Small I.D. Heater Hose |
| 2004 | Chevrolet | Impala | — | 3.4L | V6 | — | Heater To Pipe (Lower) | Small I.D. Heater Hose |
| 2004 | Chevrolet | Monte Carlo | — | 3.4L | V6 | — | Heater To Pipe (Lower) | Small I.D. Heater Hose |
| 2000 | Acura | EL | — | — | — | — | Heater To Pipe | Small I.D. Heater Hose |
| 2000 | Honda | Civic | — | 1.6L | L4 | CNG | Heater Outlet | Small I.D. Heater Hose |
| 2000 | Honda | Civic | LX | 1.6L | L4 | GAS | Heater Outlet | Small I.D. Heater Hose |
| 2000 | Honda | Civic | EX | 1.6L | L4 | GAS | Heater Outlet | Small I.D. Heater Hose |
| 2000 | Honda | Civic | CX | 1.6L | L4 | GAS | Heater Outlet | Small I.D. Heater Hose |
| 2000 | Honda | Civic | DX | 1.6L | L4 | GAS | Heater Outlet | Small I.D. Heater Hose |
| 2000 | Honda | Civic | — | 1.6L | L4 | — | Heater Outlet | Small I.D. Heater Hose |
| 1999 | Acura | EL | — | — | — | — | Heater To Pipe | Small I.D. Heater Hose |
| 1999 | Honda | Civic | — | 1.6L | L4 | — | Heater Outlet | Small I.D. Heater Hose |
| 1998 | Honda | Civic | — | 1.6L | L4 | — | Heater Outlet | Small I.D. Heater Hose |
| 1997 | Honda | Civic | — | 1.6L | L4 | — | Heater Outlet | Small I.D. Heater Hose |
| 1996 | Honda | Civic | — | 1.6L | L4 | — | Heater Outlet | Small I.D. Heater Hose |
| 1991 | Ford | E-150 Econoline | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1991 | Ford | E-150 Econoline Club Wagon | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1991 | Ford | E-250 Econoline | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1991 | Ford | E-250 Econoline Club Wagon | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1991 | Ford | E-350 Econoline | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1991 | Ford | E-350 Econoline Club Wagon | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1991 | Mazda | 929 | — | — | — | — | Pipe To Pipe | Small I.D. Heater Hose |
| 1990 | Chrysler | Dynasty | — | 2.5L | L4 | — | Heater To Intake Manifold | Small I.D. Heater Hose |
| 1990 | Dodge | Shadow | — | 2.2L | L4 | — | Valve To Engine | Small I.D. Heater Hose |
| 1990 | Dodge | Spirit | — | 2.5L | L4 | — | Valve To Heater | Small I.D. Heater Hose |
| 1990 | Ford | E-150 Econoline | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1990 | Ford | E-150 Econoline Club Wagon | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1990 | Ford | E-250 Econoline | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1990 | Ford | E-250 Econoline Club Wagon | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1990 | Ford | E-350 Econoline | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1990 | Ford | E-350 Econoline Club Wagon | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1990 | Mazda | 929 | — | — | — | — | Pipe To Pipe | Small I.D. Heater Hose |
| 1989 | Chrysler | Dynasty | — | 2.5L | L4 | — | Heater To Intake Manifold | Small I.D. Heater Hose |
| 1989 | Dodge | Lancer | — | 2.5L | L4 | — | Valve To Intake Manifold | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1989 | Dodge | Shadow | — | 2.2L | L4 | — | Valve To Engine | Small I.D. Heater Hose |
| 1989 | Dodge | Spirit | — | 2.5L | L4 | — | Valve To Heater | Small I.D. Heater Hose |
| 1989 | Ford | E-150 Econoline | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1989 | Ford | E-150 Econoline Club Wagon | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1989 | Ford | E-250 Econoline | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1989 | Ford | E-250 Econoline Club Wagon | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1989 | Ford | E-350 Econoline | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1989 | Ford | E-350 Econoline Club Wagon | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1989 | Mazda | 929 | — | — | — | — | Pipe To Pipe | Small I.D. Heater Hose |
| 1988 | Chrysler | Daytona | — | 2.5L | L4 | — | Valve To Intake Manifold | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1988 | Chrysler | Dynasty | — | 2.5L | L4 | — | Heater To Intake Manifold | Small I.D. Heater Hose |
| 1988 | Chrysler | LeBaron | — | 2.5L | L4 | — | Valve To Intake Manifold | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1988 | Chrysler | LeBaron | — | 2.2L | L4 | — | Valve To Intake Manifold | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1988 | Chrysler | Town & Country | — | 2.5L | L4 | — | Valve To Intake Manifold | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1988 | Dodge | 600 | — | 2.5L | L4 | — | Valve To Intake Manifold | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1988 | Dodge | 600 | — | 2.2L | L4 | — | Valve To Intake Manifold | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1988 | Dodge | Aries | — | 2.5L | L4 | — | Valve To Intake Manifold | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1988 | Dodge | Aries | — | 2.2L | L4 | — | Valve To Intake Manifold | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1988 | Dodge | Daytona | — | 2.5L | L4 | — | Valve To Intake Manifold | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1988 | Dodge | Lancer | — | 2.5L | L4 | — | Valve To Intake Manifold | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1988 | Dodge | Lancer | — | 2.2L | L4 | — | Valve To Intake Manifold | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1988 | Dodge | Shadow | — | 2.5L | L4 | — | Valve To Intake Manifold | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1988 | Dodge | Shadow | — | 2.2L | L4 | — | Valve To Intake Manifold | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1988 | Ford | E-150 Econoline | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1988 | Ford | E-150 Econoline Club Wagon | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1988 | Ford | E-250 Econoline | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1988 | Ford | E-250 Econoline Club Wagon | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1988 | Ford | E-350 Econoline | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1988 | Ford | E-350 Econoline Club Wagon | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1988 | Mazda | 929 | — | — | — | — | Pipe To Pipe | Small I.D. Heater Hose |
| 1988 | Nissan | Maxima | — | — | — | — | Valve To Engine | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1988 | Plymouth | Reliant | — | 2.5L | L4 | — | Valve To Intake Manifold | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1988 | Plymouth | Reliant | — | 2.2L | L4 | — | Valve To Intake Manifold | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1988 | Plymouth | Sundance | — | 2.5L | L4 | — | Valve To Intake Manifold | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1988 | Plymouth | Sundance | — | 2.2L | L4 | — | Valve To Intake Manifold | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1987 | Dodge | Lancer | — | 2.5L | L4 | — | Valve To Intake Manifold | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1987 | Dodge | Shadow | — | — | — | — | Valve To Intake Manifold | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1987 | Nissan | Maxima | — | — | — | — | Valve To Engine | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1986 | Dodge | 600 | — | 2.5L | L4 | — | Valve To Engine | Small I.D. Heater Hose |
| 1986 | Dodge | 600 | — | 2.2L | L4 | — | Valve To Engine | Small I.D. Heater Hose |
| 1986 | Dodge | Aries | — | 2.5L | L4 | — | Valve To Engine | Small I.D. Heater Hose |
| 1986 | Dodge | Aries | — | 2.2L | L4 | — | Valve To Engine | Small I.D. Heater Hose |
| 1986 | Ford | E-150 Econoline | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1986 | Ford | E-150 Econoline Club Wagon | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1986 | Ford | E-250 Econoline | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1986 | Ford | E-250 Econoline Club Wagon | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1986 | Ford | E-350 Econoline | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1986 | Ford | E-350 Econoline Club Wagon | — | 4.9L | L6 | — | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1986 | Nissan | Maxima | — | — | — | — | Valve To Engine | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1986 | Plymouth | Reliant | — | 2.5L | L4 | — | Valve To Engine | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1986 | Plymouth | Reliant | — | 2.2L | L4 | — | Valve To Engine | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| 1985 | Nissan | Maxima | — | — | — | — | Valve To Engine | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose |
| No rows match your filter. | ||||||||
Directly replaces or cross-references 12 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACDelco — 16042MCARQUEST — 18748Chrysler — 3849202Duralast — C87633Gates — 18748General Motors — 10317874General Motors — 10329478General Motors — 88958005Goodyear — 63106Goodyear — 64145NAPA — 10748V&W — 303633