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Pièces de rechange

Equipment rarely fails all at once. A thumbscrew strips, a tension spring loses its set, a plastic gear cracks in the cold, a knob goes missing in the grass — and a working telescope becomes a project. David Astro carries spare parts in Canada and can source many more through dealer channels, in stock and shipped from our Canadian warehouse.

Most manufacturers do not list service parts publicly but will supply them to authorized dealers. Tell us the model and what broke and we will check availability.

Filtres

CA$14.00 - CA$14.00
CA$14.00
CA$14.00 - CA$14.00
CA$14.00

Baader Oeilleton de Caoutchouc pour Diam 31-32.5mm

BAA-2402010

Avec aile latérale rabattable Pour diamètre 31mm - 32.5mm

CA$14.00 - CA$14.00
CA$14.00
CA$14.00 - CA$14.00
CA$14.00
CA$19.00 - CA$19.00
CA$19.00
CA$19.00 - CA$19.00
CA$19.00

Baader Oeilleton de Caoutchouc pour Diam 33.5-34mm

BAA-2402020

Avec aile latérale rabattable Pour diamètre 33.5mm - 34mm

CA$19.00 - CA$19.00
CA$19.00
CA$19.00 - CA$19.00
CA$19.00
CA$22.00 - CA$22.00
CA$22.00
CA$22.00 - CA$22.00
CA$22.00

Baader Oeilleton de Caoutchouc pour Diam 40.5-41.5mm

BAA-2402030A

Avec rabat latéral Pour diamètre 40.5mm - 41.5mm

CA$22.00 - CA$22.00
CA$22.00
CA$22.00 - CA$22.00
CA$22.00
CA$21.00 - CA$21.00
CA$21.00
CA$21.00 - CA$21.00
CA$21.00

Baader Oeilleton Ailé pour Hyperion et Aspheric (Couvre le Filetage M43)

BAA-2454653

Bouclier de lumière parasite ailé/protecteur de lunettes : Excellent bouclier de lumière parasite contre l'éclairage latéral, rabattement rapide ...

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CA$21.00 - CA$21.00
CA$21.00
CA$21.00 - CA$21.00
CA$21.00
CA$21.00 - CA$21.00
CA$21.00
CA$21.00 - CA$21.00
CA$21.00

Baader Oeilleton Ailée pour Hyperion Zoom Mark III - Couvre Filetage M43

BAA-2454654

Bouclier de lumière parasite ailé/protecteur de lunettes : Excellent bouclier de lumière parasite contre l'éclairage latéral, rabattement rapide...

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CA$21.00 - CA$21.00
CA$21.00
CA$21.00 - CA$21.00
CA$21.00
CA$244.00 - CA$244.00
CA$244.00
CA$244.00 - CA$244.00
CA$244.00

Carte moteur Celestron pour télescopes CPC

CEL-NXW431

Carte moteur Celestron pour télescopes CPC

CA$244.00 - CA$244.00
CA$244.00
CA$244.00 - CA$244.00
CA$244.00
CA$2.00 - CA$2.00
CA$2.00
CA$2.00 - CA$2.00
CA$2.00

David Astro Replacement O-Ring for Sky-Watcher 9x50 Finders

DAV-ORING-52-1.5
45 en stock

This replacement rubber O-ring fits the Sky-Watcher 9x50 finder scopes and holds the finder securely in its mounting bracket. Over time, the origi...

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CA$2.00 - CA$2.00
CA$2.00
CA$2.00 - CA$2.00
CA$2.00
Orion Optics UK 150mm f4 Research 1/8 pv mirror
CA$498.00 - CA$601.00
CA$498.00
CA$578.00 - CA$681.00
CA$578.00 - CA$681.00
CA$578.00

Orion Optics UK 150mm F/4 Mirror

Options available

150mm aperture, f/4 Research grade, 1/8 PV wavefront accuracy Hand-figured in the UK Supplied with a Zygo interferometer test report Descriptio...

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CA$498.00 - CA$601.00
CA$498.00
CA$578.00 - CA$681.00
CA$578.00 - CA$681.00
CA$578.00
Orion Optics UK 150mmf5 Standard 1/4pv mirror
CA$291.00 - CA$601.00
CA$291.00
CA$371.00 - CA$681.00
CA$371.00 - CA$681.00
CA$371.00

Orion Optics UK 150mm F/5 Mirror

Options available

150mm aperture, f/5 Standard grade, 1/4 PV wavefront accuracy Hand-figured in the UK Supplied with a Zygo interferometer test report Descriptio...

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CA$291.00 - CA$601.00
CA$291.00
CA$371.00 - CA$681.00
CA$371.00 - CA$681.00
CA$371.00
Orion Optics UK 150mmf8 Standard 1/4pv mirror
CA$307.00 - CA$597.00
CA$307.00
CA$387.00 - CA$677.00
CA$387.00 - CA$677.00
CA$387.00

Orion Optics UK 150mm F/8 Mirror

Options available

150mm aperture, f/8 Standard grade, 1/4 PV wavefront accuracy Hand-figured in the UK Supplied with a Zygo interferometer test report Descriptio...

Afficher tous les détails
CA$307.00 - CA$597.00
CA$307.00
CA$387.00 - CA$677.00
CA$387.00 - CA$677.00
CA$387.00
Orion Optics UK 200mm f4.5 Standard 1/4pv mirror
CA$601.00 - CA$1,036.00
CA$601.00
CA$681.00 - CA$1,116.00
CA$681.00 - CA$1,116.00
CA$681.00

Orion Optics UK 200mm F/4.5 Mirror

Options available

200mm aperture, f/4.5 Standard grade, 1/4 PV wavefront accuracy Hand-figured in the UK Supplied with a Zygo interferometer test report Descript...

Afficher tous les détails
CA$601.00 - CA$1,036.00
CA$601.00
CA$681.00 - CA$1,116.00
CA$681.00 - CA$1,116.00
CA$681.00
Orion Optics UK 200mm f6 Standard 1/4pv mirror
CA$589.00 - CA$981.00
CA$589.00
CA$669.00 - CA$1,061.00
CA$669.00 - CA$1,061.00
CA$669.00

Orion Optics UK 200mm F/6 Mirror

Options available

200mm aperture, f/6 Standard grade, 1/4 PV wavefront accuracy Hand-figured in the UK Supplied with a Zygo interferometer test report Descriptio...

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CA$589.00 - CA$981.00
CA$589.00
CA$669.00 - CA$1,061.00
CA$669.00 - CA$1,061.00
CA$669.00
Orion Optics UK 250mm f4.8 Standard 1/4pv mirror
CA$778.00 - CA$1,542.00
CA$778.00
CA$858.00 - CA$1,622.00
CA$858.00 - CA$1,622.00
CA$858.00

Orion Optics UK 250mm F/4.8 Mirror

Options available

250mm aperture, f/4.8 Standard grade, 1/4 PV wavefront accuracy Hand-figured in the UK Supplied with a Zygo interferometer test report Descript...

Afficher tous les détails
CA$778.00 - CA$1,542.00
CA$778.00
CA$858.00 - CA$1,622.00
CA$858.00 - CA$1,622.00
CA$858.00
Orion Optics UK 250mm f6.3 Standard 1/4pv mirror
CA$840.00 - CA$1,604.00
CA$840.00
CA$920.00 - CA$1,684.00
CA$920.00 - CA$1,684.00
CA$920.00

Orion Optics UK 250mm F/6.3 Mirror

Options available

250mm aperture, f/6.3 Standard grade, 1/4 PV wavefront accuracy Hand-figured in the UK Supplied with a Zygo interferometer test report Descript...

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CA$840.00 - CA$1,604.00
CA$840.00
CA$920.00 - CA$1,684.00
CA$920.00 - CA$1,684.00
CA$920.00
Orion Optics UK 300mm f4 Standard 1/4pv mirror
CA$1,215.00 - CA$2,447.00
CA$1,215.00
CA$1,295.00 - CA$2,527.00
CA$1,295.00 - CA$2,527.00
CA$1,295.00

Orion Optics UK 300mm F/4 Mirror

Options available

300mm aperture, f/4 Standard grade, 1/4 PV wavefront accuracy Hand-figured in the UK Supplied with a Zygo interferometer test report Descriptio...

Afficher tous les détails
CA$1,215.00 - CA$2,447.00
CA$1,215.00
CA$1,295.00 - CA$2,527.00
CA$1,295.00 - CA$2,527.00
CA$1,295.00
Orion Optics UK 300mm f5.3 Standard 1/4pv mirror
CA$1,123.00 - CA$2,234.00
CA$1,123.00
CA$1,203.00 - CA$2,314.00
CA$1,203.00 - CA$2,314.00
CA$1,203.00

Orion Optics UK 300mm F/5.3 Mirror

Options available

300mm aperture, f/5.3 Standard grade, 1/4 PV wavefront accuracy Hand-figured in the UK Supplied with a Zygo interferometer test report Descript...

Afficher tous les détails
CA$1,123.00 - CA$2,234.00
CA$1,123.00
CA$1,203.00 - CA$2,314.00
CA$1,203.00 - CA$2,314.00
CA$1,203.00
Orion Optics UK 350mm f4.7 Standard 1/4pv mirror
CA$2,194.00 - CA$3,274.00
CA$2,194.00
CA$2,274.00 - CA$3,354.00
CA$2,274.00 - CA$3,354.00
CA$2,274.00

Orion Optics UK 350mm F/4.7 Mirror

Options available

350mm aperture, f/4.7 Standard grade, 1/4 PV wavefront accuracy Hand-figured in the UK Supplied with a Zygo interferometer test report Descript...

Afficher tous les détails
CA$2,194.00 - CA$3,274.00
CA$2,194.00
CA$2,274.00 - CA$3,354.00
CA$2,274.00 - CA$3,354.00
CA$2,274.00
Orion Optics UK 35x49x10mm Plate elliptical flat mirror
CA$129.00 - CA$2,156.00
CA$129.00 - CA$2,156.00
CA$129.00 - CA$2,156.00
CA$129.00

Orion Optics UK 35x49x10mm Plate elliptical flat mirror

Options available

35x49mm minor/major axis 10mm thick Plate substrate Precision ground and coated in the UK Description Specifications In the Box Warranty ...

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CA$129.00 - CA$2,156.00
CA$129.00 - CA$2,156.00
CA$129.00 - CA$2,156.00
CA$129.00
Orion Optics UK 400mm f4 Standard 1/4pv mirror
CA$3,415.00 - CA$5,467.00
CA$3,415.00 - CA$5,467.00
CA$3,415.00 - CA$5,467.00
CA$3,415.00

Orion Optics UK 400mm F/4 Mirror

Options available

400mm aperture, f/4 Standard grade, 1/4 PV wavefront accuracy Hand-figured in the UK Supplied with a Zygo interferometer test report Descriptio...

Afficher tous les détails
CA$3,415.00 - CA$5,467.00
CA$3,415.00 - CA$5,467.00
CA$3,415.00 - CA$5,467.00
CA$3,415.00
Orion Optics UK 500mm f4 Standard 1/4pv mirror
CA$4,668.00 - CA$7,692.00
CA$4,668.00 - CA$7,692.00
CA$4,668.00 - CA$7,692.00
CA$4,668.00

Orion Optics UK 500mm F/4 Mirror

Options available

500mm aperture, f/4 Standard grade, 1/4 PV wavefront accuracy Hand-figured in the UK Supplied with a Zygo interferometer test report Descriptio...

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CA$4,668.00 - CA$7,692.00
CA$4,668.00 - CA$7,692.00
CA$4,668.00 - CA$7,692.00
CA$4,668.00
PrimaLuceLab Black color bushing long for SESTO SENSO 2 adapters
CA$22.00 - CA$22.00
CA$22.00
CA$22.00 - CA$22.00
CA$22.00

PrimaLuceLab Black color bushing long for SESTO SENSO 2 adapters

PLL-PL3600117

Upgrade Path Solution: Enables the use of first-generation SESTO SENSO adapters with the SESTO SENSO 2 motor. Cost-Effective Retrofit: Eliminate...

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CA$22.00 - CA$22.00
CA$22.00
CA$22.00 - CA$22.00
CA$22.00
PrimaLuceLab Set 3 locking screws for GIOTTO
CA$17.00 - CA$17.00
CA$17.00
CA$17.00 - CA$17.00
CA$17.00

PrimaLuceLab Set 3 locking screws for GIOTTO

PLLGIOTTOSCR

Official PrimaLuceLab spare part Set of 3 locking thumbscrews Compatible with all GIOTTO models Secures the flat field generator to the telescope ...

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CA$17.00 - CA$17.00
CA$17.00
CA$17.00 - CA$17.00
CA$17.00
Épuisé
CA$126.00 - CA$126.00
CA$126.00
CA$126.00 - CA$126.00
CA$126.00

Logiciel Bisque Paramount ME Bouton de montage de base

SB10231

Un (1) bouton de montage de remplacement pour le support Paramount ME. Bouton de montage de la base de remplacement Paramount ME Ce produit compr...

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CA$126.00 - CA$126.00
CA$126.00
CA$126.00 - CA$126.00
CA$126.00
Épuisé
Épuisé
CA$224.00 - CA$224.00
CA$224.00
CA$224.00 - CA$224.00
CA$224.00

Logiciel Bisque Câble Paramount ME Homing Sensor - 24"

SB10191

Câble de remplacement. Remplacement du câble du capteur de prise d'origine Paramount ME. Ce câble est compatible avec les systèmes de contrôle MKS ...

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CA$224.00 - CA$224.00
CA$224.00
CA$224.00 - CA$224.00
CA$224.00
Épuisé

The Parts That Fail First

Failures cluster around a small number of components, most of them inexpensive and most of them disabling.

  • Thumbscrews and set screws: Stripped, lost or seized fasteners on focusers, rings and saddles — the single most common small failure.
  • Tension springs and clutches: Focuser tension springs and mount clutch components that lose grip over time and cause slipping.
  • Gears and worm components: Drive parts, particularly plastic gears in lower-cost mounts, which become brittle after repeated cold cycling.
  • Hand controllers and cables: Coiled cables that fail internally after flexing, and connectors that corrode at the mount end.
  • Knobs and locking levers: Altitude and azimuth adjusters, focus knobs and locking levers that shear or strip.
  • Felt, liners and seals: Ring liners and light-baffle felt that compress or peel over time and are easy to replace.

Why Choose David Astro for Spare Parts

Being an authorized dealer matters most in the categories nobody thinks about at the point of purchase.

  • Dealer channel access: We can request service parts that are not publicly listed, which is often the only route to a specific fastener or gear.
  • Identification from a photo: Send us a picture and the model and we will identify the part rather than requiring a part number you do not have.
  • In-house repair as an alternative: If the part is unavailable, we can often repair or fabricate a solution rather than declaring the equipment finished.
  • Genuine components: Manufacturer parts with warranty where applicable, stocked in Canada and shipped worldwide.
  • Ships from Canada: Small parts delivered quickly and without duties or brokerage fees for Canadian buyers.

Spare Parts in Canada — Frequently Asked Questions

Can you get parts for a discontinued telescope?
Often yes. Many manufacturers maintain service stock well beyond a product's sales life and supply it to dealers. Tell us the model and the part and we will check.
I do not know the part number. Can you still help?
Yes. Send us a photograph and the equipment model and we will identify it. Part numbers for fasteners and small components are rarely documented for customers anyway.
Why do plastic parts fail in winter?
Polymers become brittle at low temperatures, and a gear or knob that flexes fine at room temperature can crack at minus 25 under normal force. Metal replacements exist for some common failures.
What if the part is not available?
We can often repair the assembly in-house or fabricate a functional replacement, which is usually faster and cheaper than replacing the whole component.

Something broken?

Send us a photo and the model and we will find the part or repair it. Canadian stock and in-house service.