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Carburetor Intake Manifold Boots for Honda VFR400 RVF400 | 16211-ML0-720
Carburetor Intake Manifold Boots for Honda VFR400 RVF400 | 16211-ML0-720
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Product Overview
Restore a secure, airtight connection between the carburetors and engine with these replacement carburetor intake manifold boots, designed for compatible Honda VFR400 and RVF400 motorcycles.
Made from durable rubber, these intake insulators help seal the connection between the carburetor assembly and cylinder-head intake ports. Replacing hardened, cracked, or leaking intake boots can help prevent unwanted air leaks that may contribute to unstable idle, hesitation, difficult starting, inconsistent throttle response, or a lean-running condition.
Designed as a direct replacement for Honda OEM 16211-ML0-720, these boots are suitable for compatible VFR400 NC21, NC24, NC30, and RVF400 NC35 applications.
Product Compatibility
| Brand | Model | Model Code | Year Range | Fitment Notes |
|---|---|---|---|---|
| Honda | VFR400K / VFR400Z | NC21 | 1987–1991 | NC21-1020013 and later; verify OEM number |
| Honda | VFR400R | NC24 | 1987–1988 | Direct replacement for 16211-ML0-720 |
| Honda | VFR400R | NC30 | 1989–1992 | Confirm original intake boot configuration |
| Honda | RVF400R | NC35 | 1994–1996 | Verify OEM number and physical shape |
Replacement catalogs identify 16211-ML0-720 for VFR400 NC21, NC24, NC30, and RVF400 NC35 applications. Exact NC21 production coverage can vary by market, so the OEM number and original boot dimensions should be used as the final fitment references.
OEM Cross-Reference Numbers
Honda
- 16211-ML0-720
- 16211ML0720
Honda identifies 16211-ML0-720 as an Insulator, Carburetor.
The original part number should match your motorcycle or parts catalog before ordering.
Specifications
| Specification | Details |
| Product Type | Carburetor Intake Manifold Boot / Insulator |
| Application | Carburetor-to-Engine Intake Connection |
| Material | Rubber |
| Color | Black |
| OEM Reference | 16211-ML0-720 |
| Vehicle Type | Motorcycle |
| Engine Platform | Honda 400cc V4 |
| Fitment Type | Direct Replacement |
| Condition | New |
| Package Quantity | 4 Intake Manifold Boots |
Key Features
- Honda V4 Fitment: Designed for compatible VFR400 NC21, NC24, NC30, and RVF400 NC35 motorcycles.
- Helps Prevent Vacuum Leaks: Creates a sealed connection between the carburetors and intake ports to reduce unwanted air entering the engine.
- Durable Rubber Construction: Flexible rubber material helps withstand engine vibration, heat, and normal intake-system movement.
- Restores Intake Sealing: Ideal for replacing old boots that have become hard, cracked, split, distorted, or difficult to seal.
- Direct-Replacement Design: Matches OEM 16211-ML0-720 applications when the shape, dimensions, and mounting configuration are correct.
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FAQ sur l'ajustement
Cette pièce conviendra-t-elle à mon modèle et à mon année spécifiques ?
This intake manifold boot set is designed for compatible:
1987–1991 Honda VFR400K / VFR400Z NC21
1987–1988 Honda VFR400R NC24
1989–1992 Honda VFR400R NC30
1994–1996 Honda RVF400R NC35
Your motorcycle should use Honda intake-insulator number 16211-ML0-720 and the original boots should match the shape and dimensions shown in the product images.
Some regional model years and NC21 configurations may differ, so model year alone should not be used as the final fitment confirmation.
Dois-je correspondre au numéro de pièce OEM ?
Yes. Matching the OEM part number is one of the most reliable ways to confirm compatibility.
This product is designed to replace:
16211-ML0-720
16211ML0720
If your original intake boot or Honda parts catalog shows a different number, compare the dimensions and configuration carefully before ordering.
A similar-looking rubber intake boot is not necessarily interchangeable.
À quels modèles ou situations cette pièce ne convient-elle pas ?
This intake manifold boot set is not intended for:
Honda VF400F NC13 using a different intake-insulator design
VFR400 or RVF400 models using a different OEM number
Motorcycles with modified carburetors requiring different intake diameters
Engine-swapped motorcycles
Applications with different carburetor outlet diameters
Boots with different cylinder-head mounting diameters
Fuel-injected motorcycles without this carburetor intake configuration
Other Honda VFR engine sizes such as VFR750 or VFR800
Do not assume that all Honda V4 motorcycles use the same carburetor intake boots.
Que dois-je vérifier avant de commander ?
Before ordering, confirm:
Motorcycle make and complete model
Exact production year
Model code: NC21, NC24, NC30, or NC35
OEM number 16211-ML0-720
Carburetor-side inner diameter
Engine-side inner diameter
Overall boot height
Rubber boot shape and angle
Clamp-groove locations
Carburetor and cylinder-head connection diameter
Quantity required
Product photos compared with your original parts
If your existing boots are cracked or hardened, also inspect the clamps, vacuum hoses, vacuum caps, carburetor seals, and surrounding intake components for leaks before reassembly.