Name: PA-18-150 Wing Rib Ship Set
Brand: Alaska Gear Company
SKU: 9269492
Price: 8650.0 USD
Availability: InStock

20 LBS Lighter

The full set of wing ribs is an average of 20 lbs lighter than the comparable certified sets on the market.

Built with Original Piper Tooling

Each rib is formed with the same tooling used on factory aircraft, preserving authentic geometry and fit.

Stronger Top Caps

Slightly thicker cap strips make these ribs more resilient to real-world damage (like snow broom dents). This modern upgrade improves durability without sacrificing any performance of the original.

FAA PMA-Certified

Certified to meet or exceed original Piper specifications without requiring STC installation or field approval.

Product Description

Our PMA-certified PA-18-150 (18 Gallon) wing rib sets are exact replicas of the original Piper Super Cub ribs — with a modern twist. Built using original Piper tooling and inspected with final go/no-go fixtures, each rib delivers precision fit and structural reliability.

We’ve made one meaningful improvement: the top cap strips are made with 0.016" aluminum instead of the original 0.012". This makes them more resistant to damage from snow removal and maintenance tools — a small change with a big impact on long-term durability.

Fuel Tanks:
The rib set is engineered to accommodate standard OEM 18-gallon fuel tanks. While it is specifically configured for this capacity, customers may choose to install FAA-approved alternatives, such as the Dakota 24-gallon or Atlee Dodge 30-gallon tanks. The rib structure itself remains designed to align with the original 18-gallon specifications.

FAA PMA Certified via Identicality – Approved replacement for original Piper PA-18 ribs with no engineering deviation beyond material thickness.
Built Using Original Piper Tooling – Ensures precise fit and authentic construction matching original factory specifications.
Enhanced Durability – Upgraded 0.016" aluminum top cap strips offer improved resistance to denting and deformation.
Snow-Resistant Design – Thicker cap strips better withstand brooming and snow removal—common causes of rib damage in backcountry environments.
Complete Ship Set – Includes 32 primary wing ribs, 22 nose ribs, 2 tip nose ribs, and 2 nose rib struts—everything needed for a 16-rib PA-18-150 (18 gallon) wing build or restoration.
Compatible with Most Upgraded Super Cubs – Designed specifically for the widely adopted 16-rib PA-18-150 wing configuration.
Ready-to-Install Kit – Ships fully packaged for safe transit and quick installation by certified aircraft builders or mechanics.

Not Compatible With:
Square-tip wings
Carbon Cubs, J3s, or Piper models with fewer than 16 ribs
Not compatible with PA-18 models made without flaps and/or one fuel tank

Model Compatibility:

PA-18-150 (16-rib wing only)

Total Weight

17.6 lbs

Configuration

16-rib wing for 18-gallon tanks

Total Components

56

Primary Ribs

32

Nose Ribs

20

Tip Ribs

2

Nose Rib Struts

2

Top Cap Material

0.016” Aluminum

Manufacturing Fixtures

Original Piper Tooling & Jigs

Main Wing Rib Breakdown (Included in Full Set):

Rib 1 LH – P/N: AF10634-05 | Qty: 1 | Weight: 12.6 oz (0.8 lbs)
Rib 1 RH – P/N: AF10634-07 | Qty: 1 | Weight: 12.6 oz (0.8 lbs)
Rib 2 & 3 – P/N: AF10635-02 | Qty: 4 | Weight: 6.8 oz each (0.4 lbs each)
Rib 4 LH – P/N: AF10653-02 | Qty: 1 | Weight: 11.4 oz (0.7 lbs)
Rib 4 RH – P/N: AF10653-05 | Qty: 1 | Weight: 11.4 oz (0.7 lbs)
Rib 5 – P/N: AF13052-07 | Qty: 2 | Weight: 10.0 oz each (0.6 lbs each)
Rib 6 LH – P/N: AF13052-10 | Qty: 1 | Weight: 10.0 oz (0.6 lbs)
Rib 6 RH – P/N: AF13052-09 | Qty: 1 | Weight: 10.0 oz (0.6 lbs)
Rib 7 LH – P/N: AF13042-02 | Qty: 1 | Weight: 9.8 oz (0.6 lbs)
Rib 7 RH – P/N: AF13042-03 | Qty: 1 | Weight: 9.8 oz (0.6 lbs)
Rib 8 – P/N: AF13022-10 | Qty: 2 | Weight: 8.4 oz each (0.5 lbs each)
Rib 9 & 12 – P/N: AF13022-11 | Qty: 4 | Weight: 8.6 oz each (0.5 lbs each)
Rib 10, 13 & 14 – P/N: AF13022-02 | Qty: 6 | Weight: 8.8 oz each (0.6 lbs each)
Rib 11 – P/N: AF13022-09 | Qty: 2 | Weight: 8.4 oz each (0.5 lbs each)
Rib 15 LH – P/N: AF12902-00 | Qty: 1 | Weight: 10.8 oz (0.7 lbs)
Rib 15 RH – P/N: AF12902-01 | Qty: 1 | Weight: 10.8 oz (0.7 lbs)
Rib 16 LH – P/N: AF10742-02 | Qty: 1 | Weight: 6.6 oz (0.4 lbs)
Rib 16 RH – P/N: AF10742-03 | Qty: 1 | Weight: 6.6 oz (0.4 lbs)

Nose Ribs & Tip Components (Included in Full Set):

Nose Rib Aft – P/N: AF12662-04 | Qty: 4 | Weight: 1.4 oz each (0.1 lbs each)
Nose Rib Fwd – P/N: AF12662-02 | Qty: 16 | Weight: 1.6 oz each (0.1 lbs each)
Nose Rib Strut – P/N: AF15712-02 | Qty: 2 | Weight: 1.8 oz each (0.1 lbs each)
Tip Nose LH – P/N: AF16192-00 | Qty: 1 | Weight: 1.2 oz (0.1 lbs)
Tip Nose RH – P/N: AF16192-01 | Qty: 1 | Weight: 1.2 oz (0.1 lbs)

PA-18-150 Wing Rib Ship Set

Certified | 18 Gallon Fuel Tank | Both Wings

In Stock & Ready to Ship

20 LBS Lighter

Built with Original Piper Tooling

Stronger Top Caps

FAA PMA-Certified

Product Description

Customer Reviews

Recently viewed

Be the First to Know

PA-18-150 Wing Rib Ship Set

Certified | 18 Gallon Fuel Tank | Both Wings

In Stock & Ready to Ship

20 LBS Lighter

Built with Original Piper Tooling

Stronger Top Caps

FAA PMA-Certified

Product Description

Customer Reviews