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 Product Notes

To issue the STC, Univair requires your aircraft's make, model, registration number, and serial number. Please enter this information in the fields above and accept the Limited Purpose Agreement.

  • Applicability: For installation of Lycoming O-290D or O-290 D2 engine in Piper PA-12, PA-12S
  • Excludes engine and oil cooler
  • Kit includes 501 engine mount, installation instructions and STC approval, and items listed below:
Engine Baffles
12424-000, 12428-004, 12367-006, 12427-000, 12749-005, 12425-000, 12426-000, 13744-000
Oil Cooler Installation
Hose AN6264-8-32
Hose AN6264-8-38
Fittings (3) (AN822-8D) MS20822-8D
Fitting (AN823-8D) MS20823-8D
Mounting bracket U13725-000
Mounting bracket U13720-000
Exhaust System (PA-18 crossover)
Front stack assembly U12457-012
Rear stack assembly U12457-013
Oil cooler scoop U13717-000
Muffler shroud 12436-000
Shroud clip U71261-005
Muffler U12433-015


ABOUT RETURNING THIS KIT: To receive a refund, this kit must be returned to Univair FULLY INTACT. All parts, hardware, manufacturer’s packaging, installation instructions, etc. included in the kit must be included in the return. Kits returned to Univair with missing parts will be shipped back to the customer at customer’s expense.

We do not guarantee that all items for sale through our website, catalog or advertising are in stock at all times. Price and availablility is subject to change without notice. Univair reserves the right to charge you the current price of the item at the time your order is fulfilled/shipped, not the price at the time your order was placed. For further details, see this article in our Knowledge Base or contact our sales department during regular business hours.

To the extent that the trademarks or registered trademarks of an original equipment manufacturer other than Univair are mentioned on this website, the name of that manufacturer is only for descriptive use and does not imply any affiliation with, manufacture by or endorsement by the respective owners of such trademark. Many products of Univair are replacement products for products of original equipment manufacturer of the aircraft. Univair to the extent required by Federal law obtains approval from the FAA for the manufacture of replacement parts for aircraft. The reference to the name of the original manufacturer is for identification purposes only and not to represent the original manufacturer is associated in any way with the Univair product.

 Shipping & Returns

SHIPPING COSTS: Univair charges ACTUAL SHIPPING COSTS on all shipments. The shipping charges shown during checkout are ESTIMATES only. Univair reserves the right to adjust your final invoice depending on the size, weight, and number of packages being shipped. For details see: How We Calculate Shipping Costs.

ADD-ON FEES: Some products may incur additional fees on top of shipping costs. For details see: Additional Shipping and Handling Fees.

FREE SHIPPING: Orders over $300.00 may qualify for free ground shipping. Orders over $3,000.00 may qualify for free motor freight. Restrictions apply. For full details, see: Free Shipping From Univair.

HAZMAT: For details about how we ship hazardous materials, see: Restrictions on Shipping Hazmat Items.

RETURNS: All items returned to Univair for a refund or credit must be authorized in advance. For details our Returns and Refunds Policy.

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Univair Aircraft Corporation

2500 Himalaya Road
Aurora, Colorado 80011

Toll Free Sales: 888-433-5433
Phone: 303-375-8882
Fax: 303-375-8888

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All product and company names are trademarks or registered trademarks of their respective owners. Univar's descriptive use does not imply any affiliation with or endorsement by the respective owners.

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