Aukson 1.8T SAI Blanking Plate is an automotive part designed to seal the secondary air injection port on 1.8T cylinder heads, keeping the engine bay neater and components accessible. Home mechanics and tuners will welcome a straightforward install and included sealing hardware. Is the fit reliable enough for a tidy, long-lasting SAI delete?
⚡ At a Glance
- • Fit and Seal: CNC-machined billet aluminium with included O-ring, lock washers and bolts for a sealed fit
- • Best for: Owners of 1.8T engines on Mk4, B5 and B6 platforms removing the SAI system who want a tidier engine bay and sensor access
- • Not ideal for: Vehicles that require an operational secondary air injection system for emissions compliance
CNC-machined billet aluminium block-off plate for 1.8T cylinder heads supplied with sealing O-ring and mounting hardware. Designed to close the SAI port and free space behind the block after SAI removal.
Secure seal, with CNC-machined billet aluminium and O-ring
Billet aluminium is CNC-machined to match the SAI port profile precisely, while the supplied O-ring forms a pressure-tight seal against the head surface. Lock washers and bolts secure the plate to prevent loosening under vibration.
A dependable seal reduces the risk of vacuum or exhaust leaks and removes the need for improvised gaskets during an SAI delete.
Easier sensor access, with SAI hoses removed and space cleared
Removing factory SAI components and fitting the blanking plate clears the area behind the cylinder head, exposing the secondary oxygen sensor and associated routing. The simplified layout reduces obstruction from plastic lines and hard lines.
Mechanics gain straightforward access for diagnostics and sensor replacement without wrestling with tangled vacuum hosing.
Faster installation, with included bolts and lock washers
Package contents include the O-ring, bolts and lock washers so the plate can be mounted using common hand tools and standard torque practices. The plate is designed for direct head-port placement on 1.8T heads.
Quick fitting cuts workshop time and avoids delays caused by sourcing additional fixings or seal components.
✨ The 4 Key Reasons for Aukson 1.8T SAI Blanking Plate
- Direct replacement fit - Removes the need for custom fabrication on 1.8T head ports
- Billet aluminium construction - Withstands engine-bay heat and corrosion for long service life
- Complete hardware pack - O-ring, bolts and lock washers included for immediate installation
- Clears vacuum hosing clutter - Frees space for easier maintenance and sensor access
📋 Technical Details at a Glance
- Category: Automotive Parts and Accessories
- Application: SAI (secondary air injection) block-off plate
- Engine Compatibility: 1.8T cylinder head
- Vehicle Fitment: Mk4, B5, B6 platforms
- Material: Billet aluminium
❓ Frequently Asked Questions
Q: Does the kit include the seal and fixings needed for installation?
A: Includes an O-ring, lock washers and bolts so the blanking plate can be fitted without sourcing extra hardware.
Q: Will this fit a 1.8T cylinder head on my car?
A: Designed for 1.8T head ports and noted as fitting Mk4, B5 and B6 platforms.
Q: Will blocking the SAI port affect access to sensors?
A: Blocking the SAI port after removal of the system clears space and gives easier access to the secondary O2 sensor.
🏆 Our Verdict
Suitable for 1.8T owners and home mechanics who have removed the SAI system and need a reliable, tidy block-off. CNC-machined aluminium construction combined with the supplied O-ring and fixings delivers a precise, sealed fit and easier access to the secondary O2 sensor. Durable build and complete hardware make for a one-time installation that reduces the chance of repeat work.
