Moroso Performance Coolant Filler Neck (MPN: 63420)

Enhance cooling efficiency with a versatile aluminum filler neck.

The Moroso Performance Coolant Filler Neck is designed to optimize the cooling system in vehicles with low mount radiators. This unit is engineered to be bolted onto the manifold, ensuring that it is positioned at the highest point to effectively bleed off air from the system. Constructed from durable 356-T6 cast aluminum, it stands at a height of 3-1/4 inches and features a natural finish for added resilience.

This filler neck is versatile, allowing for a 180-degree flip to accommodate either right or left water hose outlet locations. It includes a 1/2 inch NPT fitting for the installation of a water temperature sending unit, along with two 1/4 inch NPT fittings for return lines, making it compatible with popular aftermarket cylinder heads. The product comes complete with necessary gaskets, bolts, and washers, ensuring a straightforward installation process.

Moroso Performance is recognized for its commitment to quality and innovation in automotive equipment, catering to both racing and street performance applications. This coolant filler neck exemplifies their dedication to providing reliable and efficient solutions for automotive cooling systems.

Features

• Locates Filler Neck At Highest Point On Cars With Low Mount Radiators To Bleed Off Air
• The Unit Can Be Flipped 180 Degree For Either Right Or Left Water Hose Outlet Location
• Comes With 1/2 Inch NPT Fitting For Installing Water Temperature Sending Unit And Two 1/4 Inch NPT Fittings For Return Lines On Popular Aftermarket Cylinder Heads
• Made Of 356-T6 Cast Aluminum; 3-1/4 Inch High
• Comes With Gaskets, Bolts And Washers, And Standard Size Radiator Cap Filler Neck

Specifications

• Manufacturer: Moroso Performance
• Manufacturer Part Number: 63420
• Compatibility: Standard Size Radiator Cap
• Type: Bolt-On To Manifold
• Inside Diameter: 1.7 Inch
• Finish: Natural
• Color: Silver
• Material: Aluminum
• With Radiator Cap: No
• With Fitting: Yes
• With Gaskets: Yes

Compatibility / Fit

• 1969-1974 Avanti II
• 1977-1981 Buick Century
• 1991-1993 Buick Commercial Chassis
• 1978-1978 Buick LeSabre
• 1977-1981 Buick Regal
• 1991-1993 Buick Roadmaster
• 1977-1979 Buick Skylark
• 1990-1992 Cadillac Brougham
• 1992-1993 Cadillac Commercial Chassis
• 1999-2000 Cadillac Escalade
• 1993-1993 Cadillac Fleetwood
• 1969-1974 Checker Aerobus
• 1969-1970 Checker Deluxe
• 1969-1974 Checker Marathon
• 1980-1982 Checker Marathon
• 1969-1974 Checker Taxicab
• 1959-1959 Chevrolet 3B
• 1959-1959 Chevrolet 3C
• 1959-1959 Chevrolet 3D
• 1959-1959 Chevrolet 3E
• 1959-1959 Chevrolet 3F
• 1959-1959 Chevrolet 3G
• 1955-1975 Chevrolet Bel Air
• 1958-1972 Chevrolet Biscayne
• 1969-1974 Chevrolet Blazer
• 1987-1994 Chevrolet Blazer
• 1959-1961 Chevrolet Brookwood
• 1969-1972 Chevrolet Brookwood
• 1975-1986 Chevrolet C10
• 1960-1974 Chevrolet C10 Pickup
• 1967-1986 Chevrolet C10 Suburban
• 1988-1999 Chevrolet C1500
• 1992-1999 Chevrolet C1500 Suburban
• 1975-1986 Chevrolet C20
• 1960-1974 Chevrolet C20 Pickup
• 1967-1986 Chevrolet C20 Suburban
• 1988-2000 Chevrolet C2500
• 1992-1999 Chevrolet C2500 Suburban
• 1975-1986 Chevrolet C30
• 1960-1974 Chevrolet C30 Pickup
• 1988-2000 Chevrolet C3500
• 1960-1962 Chevrolet C40
• 1967-1992 Chevrolet Camaro
• 1966-1993 Chevrolet Caprice
• 1964-1973 Chevrolet Chevelle
• 1963-1968 Chevrolet Chevy II
• 1991-1993 Chevrolet Commercial Chassis
• 1955-1981 Chevrolet Corvette
• 1985-1991 Chevrolet Corvette
• 1957-1958 Chevrolet Del Ray
• 1959-1960 Chevrolet El Camino
• 1964-1987 Chevrolet El Camino
• 1969-1970 Chevrolet Estate
• 1996-2002 Chevrolet Express 1500
• 1996-2002 Chevrolet Express 2500
• 1996-2002 Chevrolet Express 3500
• 1975-1995 Chevrolet G10
• 1972-1974 Chevrolet G10 Van
• 1975-1995 Chevrolet G20
• 1967-1974 Chevrolet G20 Van
• 1975-1996 Chevrolet G30
• 1972-1974 Chevrolet G30 Van
• 1958-1985 Chevrolet Impala
• 1975-1986 Chevrolet K10
• 1960-1974 Chevrolet K10 Pickup
• 1967-1986 Chevrolet K10 Suburban
• 1988-1999 Chevrolet K1500
• 1992-1999 Chevrolet K1500 Suburban
• 1975-1986 Chevrolet K20
• 1960-1974 Chevrolet K20 Pickup
• 1967-1986 Chevrolet K20 Suburban
• 1988-2000 Chevrolet K2500
• 1992-1999 Chevrolet K2500 Suburban
• 1977-1986 Chevrolet K30
• 1968-1974 Chevrolet K30 Pickup
• 1988-2000 Chevrolet K3500
• 1975-1986 Chevrolet K5 Blazer
• 1959-1961 Chevrolet Kingswood
• 1969-1972 Chevrolet Kingswood
• 1973-1976 Chevrolet Laguna
• 1964-1964 Chevrolet Malibu
• 1967-1967 Chevrolet Malibu
• 1973-1983 Chevrolet Malibu
• 1970-1988 Chevrolet Monte Carlo
• 1975-1979 Chevrolet Monza
• 1958-1961 Chevrolet Nomad
• 1969-1979 Chevrolet Nova
• 1955-1957 Chevrolet One-Fifty Series
• 1975-1975 Chevrolet P10
• 1977-1979 Chevrolet P10
• 1961-1962 Chevrolet P10 Series
• 1973-1973 Chevrolet P10 Van
• 1975-1989 Chevrolet P20
• 1961-1962 Chevrolet P20 Series
• 1970-1971 Chevrolet P20 Van
• 1973-1974 Chevrolet P20 Van
• 1975-1999 Chevrolet P30
• 1961-1962 Chevrolet P30 Series
• 1970-1971 Chevrolet P30 Van
• 1973-1974 Chevrolet P30 Van
• 1959-1961 Chevrolet Parkwood
• 1987-1987 Chevrolet R10
• 1987-1988 Chevrolet R10 Suburban
• 1989-1991 Chevrolet R1500 Suburban
• 1987-1988 Chevrolet R20
• 1987-1988 Chevrolet R20 Suburban
• 1989-1989 Chevrolet R2500
• 1989-1991 Chevrolet R2500 Suburban
• 1987-1988 Chevrolet R30
• 1989-1991 Chevrolet R3500
• 1955-1958 Chevrolet Sedan Delivery
• 1900-1900 Chevrolet Small Block 1987-1998 (OE Roller)
• 1960-1966 Chevrolet Suburban
• 1995-2000 Chevrolet Tahoe
• 1969-1972 Chevrolet Townsman
• 1955-1958 Chevrolet Truck
• 1960-1960 Chevrolet Truck
• 1955-1957 Chevrolet Two-Ten Series
• 1987-1987 Chevrolet V10
• 1988-1988 Chevrolet V10 Suburban
• 1989-1991 Chevrolet V1500 Suburban
• 1987-1987 Chevrolet V20
• 1987-1988 Chevrolet V20 Suburban
• 1989-1991 Chevrolet V2500 Suburban
• 1987-1988 Chevrolet V30
• 1989-1991 Chevrolet V3500
• 1958-1958 Chevrolet Yeoman
• 1965-1979 Excalibur Phaeton
• 1960-1963 GMC 1000 Series
• 1960-1963 GMC 1500 Series
• 1960-1963 GMC 2500 Series
• 1960-1966 GMC 3000
• 1960-1966 GMC 3500
• 1975-1978 GMC C15
• 1975-1978 GMC C15 Suburban
• 1967-1974 GMC C15/C1500 Pickup
• 1967-1974 GMC C15/C1500 Suburban
• 1979-1986 GMC C1500
• 1988-1999 GMC C1500
• 1979-1986 GMC C1500 Suburban
• 1992-1999 GMC C1500 Suburban
• 1975-1978 GMC C25
• 1975-1978 GMC C25 Suburban
• 1967-1974 GMC C25/C2500 Pickup
• 1967-1974 GMC C25/C2500 Suburban
• 1979-1986 GMC C2500
• 1988-2000 GMC C2500
• 1979-1986 GMC C2500 Suburban
• 1992-1999 GMC C2500 Suburban
• 1975-1978 GMC C35
• 1967-1974 GMC C35/C3500 Pickup
• 1979-1986 GMC C3500
• 1988-2000 GMC C3500
• 1978-1987 GMC Caballero
• 1975-1978 GMC G15
• 1974-1974 GMC G15/G1500 Van
• 1979-1995 GMC G1500
• 1975-1978 GMC G25
• 1974-1974 GMC G25/G2500 Van
• 1979-1995 GMC G2500
• 1975-1978 GMC G35
• 1970-1974 GMC G35/G3500 Van
• 1979-1996 GMC G3500
• 1970-1991 GMC Jimmy
• 1975-1978 GMC K15
• 1975-1978 GMC K15 Suburban
• 1967-1974 GMC K15/K1500 Pickup
• 1967-1974 GMC K15/K1500 Suburban
• 1979-1986 GMC K1500
• 1988-1999 GMC K1500
• 1979-1986 GMC K1500 Suburban
• 1992-1999 GMC K1500 Suburban
• 1975-1978 GMC K25
• 1975-1978 GMC K25 Suburban
• 1967-1974 GMC K25/K2500 Pickup
• 1967-1974 GMC K25/K2500 Suburban
• 1979-1986 GMC K2500
• 1988-2000 GMC K2500
• 1979-1986 GMC K2500 Suburban
• 1992-1999 GMC K2500 Suburban
• 1977-1978 GMC K35
• 1968-1974 GMC K35/K3500 Pickup
• 1979-1986 GMC K3500
• 1988-2000 GMC K3500
• 1979-1979 GMC P1500
• 1975-1978 GMC P25
• 1970-1971 GMC P25/P2500 Van
• 1979-1989 GMC P2500
• 1975-1978 GMC P35
• 1970-1971 GMC P35/P3500 Van
• 1973-1974 GMC P35/P3500 Van
• 1979-1999 GMC P3500
• 1987-1987 GMC R1500
• 1987-1991 GMC R1500 Suburban
• 1987-1989 GMC R2500
• 1987-1991 GMC R2500 Suburban
• 1987-1991 GMC R3500
• 1996-2002 GMC Savana 1500
• 1996-2002 GMC Savana 2500
• 1996-2002 GMC Savana 3500
• 1971-1977 GMC Sprint
• 1960-1965 GMC Suburban
• 1960-1960 GMC Truck
• 1987-1987 GMC V1500
• 1987-1991 GMC V1500 Suburban
• 1987-1987 GMC V2500
• 1987-1991 GMC V2500 Suburban
• 1987-1991 GMC V3500
• 1992-1999 GMC Yukon
• 1964-1967 Gordon-Keeble GK1
• 1964-1967 Gordon-Keeble IT
• 1965-1974 Iso Grifo
• 1969-1974 Iso Lele
• 1963-1970 Iso Rivolta
• 1967-1974 Iso S4 Fidia
• 1975-1975 Oldsmobile Custom Cruiser
• 1977-1977 Oldsmobile Custom Cruiser
• 1991-1992 Oldsmobile Custom Cruiser
• 1978-1980 Oldsmobile Cutlass
• 1978-1980 Oldsmobile Cutlass Calais
• 1980-1980 Oldsmobile Cutlass Cruiser
• 1982-1982 Oldsmobile Cutlass Cruiser
• 1978-1980 Oldsmobile Cutlass Salon
• 1978-1980 Oldsmobile Cutlass Supreme
• 1975-1975 Oldsmobile Delta 88
• 1977-1977 Oldsmobile Delta 88
• 1977-1979 Oldsmobile Omega
• 1977-1979 Oldsmobile Starfire
• 1975-1975 Pontiac Bonneville
• 1980-1981 Pontiac Bonneville
• 1983-1986 Pontiac Bonneville
• 1975-1975 Pontiac Catalina
• 1980-1981 Pontiac Catalina
• 1977-1992 Pontiac Firebird
• 1975-1975 Pontiac Grand Am
• 1978-1980 Pontiac Grand Am
• 1975-1975 Pontiac Grand LeMans
• 1977-1981 Pontiac Grand LeMans
• 1975-1976 Pontiac Grand Prix
• 1978-1981 Pontiac Grand Prix
• 1983-1987 Pontiac Grand Prix
• 1975-1975 Pontiac Grandville
• 1975-1975 Pontiac LeMans
• 1977-1981 Pontiac LeMans
• 1983-1986 Pontiac Parisienne
• 1977-1979 Pontiac Phoenix
• 1978-1979 Pontiac Sunbird
• 1977-1977 Pontiac Ventura
• 1965-1966 Studebaker Commander
• 1965-1966 Studebaker Cruiser
• 1965-1966 Studebaker Daytona
• 1966-1966 Studebaker Wagonaire
• 2000-2005 Workhorse P30