Air Cooled VW 1971-1974 Dual Port Intake Manifold Red Silicone Boot 113129729B

1971-1974 Dual Port Intake Manifold Red Silicone Boot 113129729B - OEM Number(s) (113-129-729-B)

Stop intake leaks and add durability with high-temp red silicone boots.

Stock rubber intake boots often dry out, crack, and let air sneak past, causing rough idle and poor drivability. This upgraded red silicone boot replaces the original on dual port engines, giving you a longer-lasting, heat-resistant seal that keeps your VW tuned and responsive.

Fits the Following Volkswagen Models:

• Beetle, Standard: 1971–1974

• Beetle, Super: 1971–1974

• Bus: 1971

• Karmann Ghia: 1971–1974

• Thing: 1973–1974

Material/Finish

• High-temp red silicone construction

• Flexible and fuel-resistant

Dimensions

• Inside diameter, small: 1 3/8 in. (35 mm)

• Inside diameter, large: 1 3/4 in. (44 mm)

• Height: 1 1/4 in. (31.5 mm)

Features/Benefits

• VW reference part number 113-129-729B

• Superior durability compared to stock rubber boots

• Heat-resistant silicone withstands high engine bay temps

• Helps maintain proper carburetor tuning and idle quality

• Installs left or right, direct OE fit

• Sold individually, 2 required per Volkswagen.

Because Details Matter
A Volkswagen engine’s smooth idle and crisp response depend on a leak-free intake system. Upgraded silicone boots keep everything sealed tight, resisting the heat and aging that destroy ordinary rubber. Replace them once and drive with confidence — because details matter.

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Also known under these part numbers: (For reference only)

• 00-3404-B
• 113-129-729-B
• 113129729BSI
• 707924321692